From patchwork Thu Apr 27 07:36:32 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Peter Korsgaard X-Patchwork-Id: 755843 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3wD80V3csHz9s4q for ; Thu, 27 Apr 2017 17:36:57 +1000 (AEST) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="b4NMze9M"; dkim-atps=neutral Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 101E88A844; Thu, 27 Apr 2017 07:36:53 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Vf5gitAMI8mm; Thu, 27 Apr 2017 07:36:50 +0000 (UTC) Received: from ash.osuosl.org (ash.osuosl.org [140.211.166.34]) by hemlock.osuosl.org (Postfix) with ESMTP id 2AECB8A830; Thu, 27 Apr 2017 07:36:50 +0000 (UTC) X-Original-To: buildroot@lists.busybox.net Delivered-To: buildroot@osuosl.org Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by ash.osuosl.org (Postfix) with ESMTP id 083F61BFE41 for ; Thu, 27 Apr 2017 07:36:48 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id EA7E12D3E3 for ; Thu, 27 Apr 2017 07:36:47 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id raJej1HUGuiX for ; Thu, 27 Apr 2017 07:36:45 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mail-wm0-f65.google.com (mail-wm0-f65.google.com [74.125.82.65]) by silver.osuosl.org (Postfix) with ESMTPS id 8798823252 for ; Thu, 27 Apr 2017 07:36:44 +0000 (UTC) Received: by mail-wm0-f65.google.com with SMTP id u65so2628519wmu.3 for ; Thu, 27 Apr 2017 00:36:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=vpaYz5f2Oix2JS5/gcAS2+XvM5QzA0d53lCOYMIeJis=; b=b4NMze9MyANL8jBOiwkLxR7ZcF2AnTrYcUO7ras5zxqMoHPQ+ZrScWUYqZhC4CXt48 iaAVvmEOlfmx0uM5jufqu3D/lR511FS/1/gyVZQVJr5XLJ3LBqyWrLUXGw3raLATkccJ +pzjr20Zw+iz1SVN8BBe2FMxDhSAOdlWagF9HT9/v1BhUBdn8rNCnDNXfkVGRxwUlGzJ 6Nuf9zdK2+IiPu4Mji7hkgidRRg3W+YYw0X9O7VEq0WQNwh5wZxEfix8fGA9hCv7SjCm FNCV1eeXBMJeoRKAdn08+zQ6QTsJOhKxusQsp6C0YWeEgei8/qhb9rDgR1KGKXBcrzQz ZySQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :mime-version:content-transfer-encoding; bh=vpaYz5f2Oix2JS5/gcAS2+XvM5QzA0d53lCOYMIeJis=; b=axdrLW7O88wef3F1aMk6jXqu1NDt0t+sR/BSePdxQp5fPYEmXry9AYBvjloXzN9zFC mlnDMSFGobOuKhQpTJkATjrKyRDiCogPnMwoLt9eUOFAOP4me206fPiQyxn8LpgUxAfO n71EMZU3J5uHBuP/6w5vp02YO72GvF8JmYRO59frhufh4hkIPkSp1RgBQyhNMYLOl6J4 LvWQqju9T81d/9k6NqoAru6kZgJsKFl2074DFqPCvh1jtay109ft7/nZefaIZ+ea8nhg hihiyUpkWZoviXJuaWd60kQVnlwIhsPUxQjh+Bu45KcLqteQ8+UFPWDP3sMYOwfSJOZR t30A== X-Gm-Message-State: AN3rC/5yKEuZ+OTT/c7tY+W7I1UOr5stDizk2LnVqfe1J9FwPfZahWrx l0jXcRQ+bsRqpg== X-Received: by 10.28.95.85 with SMTP id t82mr1143450wmb.3.1493278602220; Thu, 27 Apr 2017 00:36:42 -0700 (PDT) Received: from dell.be.48ers.dk ([91.183.172.93]) by smtp.gmail.com with ESMTPSA id s81sm7412491wms.6.2017.04.27.00.36.40 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 27 Apr 2017 00:36:40 -0700 (PDT) Received: from peko by dell.be.48ers.dk with local (Exim 4.88) (envelope-from ) id 1d3dyh-0007Rc-HO; Thu, 27 Apr 2017 09:36:39 +0200 From: Peter Korsgaard To: buildroot@buildroot.org Date: Thu, 27 Apr 2017 09:36:32 +0200 Message-Id: <20170427073633.28576-1-peter@korsgaard.com> X-Mailer: git-send-email 2.11.0 MIME-Version: 1.0 Cc: oli.vogt.pub01@gmail.com Subject: [Buildroot] [PATCH 1/2] tiff: add upstream security fixes X-BeenThere: buildroot@busybox.net X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Discussion and development of buildroot List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: buildroot-bounces@busybox.net Sender: "buildroot" Add upstream post-4.0.7 commits (except for ChangeLog modifications) fixing the following security issues: CVE-2016-10266 - LibTIFF 4.0.7 allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted TIFF image, related to libtiff/tif_read.c:351:22. CVE-2016-10267 - LibTIFF 4.0.7 allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted TIFF image, related to libtiff/tif_ojpeg.c:816:8. CVE-2016-10269 - LibTIFF 4.0.7 allows remote attackers to cause a denial of service (heap-based buffer over-read) or possibly have unspecified other impact via a crafted TIFF image, related to "READ of size 512" and libtiff/tif_unix.c:340:2. CVE-2016-10270 - LibTIFF 4.0.7 allows remote attackers to cause a denial of service (heap-based buffer over-read) or possibly have unspecified other impact via a crafted TIFF image, related to "READ of size 8" and libtiff/tif_read.c:523:22. CVE-2017-5225 - LibTIFF version 4.0.7 is vulnerable to a heap buffer overflow in the tools/tiffcp resulting in DoS or code execution via a crafted BitsPerSample value. CVE-2017-7592 - The putagreytile function in tif_getimage.c in LibTIFF 4.0.7 has a left-shift undefined behavior issue, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted image. CVE-2017-7593 - tif_read.c in LibTIFF 4.0.7 does not ensure that tif_rawdata is properly initialized, which might allow remote attackers to obtain sensitive information from process memory via a crafted image. CVE-2017-7594 - The OJPEGReadHeaderInfoSecTablesDcTable function in tif_ojpeg.c in LibTIFF 4.0.7 allows remote attackers to cause a denial of service (memory leak) via a crafted image. CVE-2017-7595 - The JPEGSetupEncode function in tiff_jpeg.c in LibTIFF 4.0.7 allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted image. CVE-2017-7598 - tif_dirread.c in LibTIFF 4.0.7 might allow remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted image. CVE-2017-7601 - LibTIFF 4.0.7 has a "shift exponent too large for 64-bit type long" undefined behavior issue, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted image. CVE-2017-7602 - LibTIFF 4.0.7 has a signed integer overflow, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted image. Signed-off-by: Peter Korsgaard --- ..._read.c-libtiff-tiffiop.h-fix-uint32-over.patch | 46 +++++++++ ..._ojpeg.c-make-OJPEGDecode-early-exit-in-c.patch | 53 ++++++++++ ..._pixarlog.c-libtiff-tif_luv.c-fix-heap-ba.patch | 110 +++++++++++++++++++++ ..._dirread.c-modify-ChopUpSingleUncompresse.patch | 107 ++++++++++++++++++++ ...p.c-error-out-cleanly-in-cpContig2Separat.patch | 74 ++++++++++++++ ..._getimage.c-add-explicit-uint32-cast-in-p.patch | 31 ++++++ ...fiop.h-tif_unix.c-tif_win32.c-tif_vms.c-a.patch | 88 +++++++++++++++++ ..._ojpeg.c-fix-leak-in-OJPEGReadHeaderInfoS.patch | 43 ++++++++ ..._ojpeg.c-fix-leak-in-OJPEGReadHeaderInfoS.patch | 36 +++++++ ..._jpeg.c-avoid-integer-division-by-zero-in.patch | 35 +++++++ ..._dirread.c-avoid-division-by-floating-poi.patch | 47 +++++++++ ..._jpeg.c-validate-BitsPerSample-in-JPEGSet.patch | 35 +++++++ ..._read.c-avoid-potential-undefined-behavio.patch | 56 +++++++++++ 13 files changed, 761 insertions(+) create mode 100644 package/tiff/0001-libtiff-tif_read.c-libtiff-tiffiop.h-fix-uint32-over.patch create mode 100644 package/tiff/0002-libtiff-tif_ojpeg.c-make-OJPEGDecode-early-exit-in-c.patch create mode 100644 package/tiff/0003-libtiff-tif_pixarlog.c-libtiff-tif_luv.c-fix-heap-ba.patch create mode 100644 package/tiff/0004-libtiff-tif_dirread.c-modify-ChopUpSingleUncompresse.patch create mode 100644 package/tiff/0005-tools-tiffcp.c-error-out-cleanly-in-cpContig2Separat.patch create mode 100644 package/tiff/0006-libtiff-tif_getimage.c-add-explicit-uint32-cast-in-p.patch create mode 100644 package/tiff/0007-libtiff-tiffiop.h-tif_unix.c-tif_win32.c-tif_vms.c-a.patch create mode 100644 package/tiff/0008-libtiff-tif_ojpeg.c-fix-leak-in-OJPEGReadHeaderInfoS.patch create mode 100644 package/tiff/0009-libtiff-tif_ojpeg.c-fix-leak-in-OJPEGReadHeaderInfoS.patch create mode 100644 package/tiff/0010-libtiff-tif_jpeg.c-avoid-integer-division-by-zero-in.patch create mode 100644 package/tiff/0011-libtiff-tif_dirread.c-avoid-division-by-floating-poi.patch create mode 100644 package/tiff/0012-libtiff-tif_jpeg.c-validate-BitsPerSample-in-JPEGSet.patch create mode 100644 package/tiff/0013-libtiff-tif_read.c-avoid-potential-undefined-behavio.patch diff --git a/package/tiff/0001-libtiff-tif_read.c-libtiff-tiffiop.h-fix-uint32-over.patch b/package/tiff/0001-libtiff-tif_read.c-libtiff-tiffiop.h-fix-uint32-over.patch new file mode 100644 index 000000000..9df4577e1 --- /dev/null +++ b/package/tiff/0001-libtiff-tif_read.c-libtiff-tiffiop.h-fix-uint32-over.patch @@ -0,0 +1,46 @@ +From 438274f938e046d33cb0e1230b41da32ffe223e1 Mon Sep 17 00:00:00 2001 +From: erouault +Date: Fri, 2 Dec 2016 21:56:56 +0000 +Subject: [PATCH] * libtiff/tif_read.c, libtiff/tiffiop.h: fix uint32 overflow + in TIFFReadEncodedStrip() that caused an integer division by zero. Reported + by Agostino Sarubbo. Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2596 + +Fixes CVE-2016-10266 + +Signed-off-by: Peter Korsgaard +--- + libtiff/tif_read.c | 2 +- + libtiff/tiffiop.h | 4 ++++ + 2 files changed, 12 insertions(+), 1 deletion(-) + +diff --git a/libtiff/tif_read.c b/libtiff/tif_read.c +index c26c55f4..52bbf507 100644 +--- a/libtiff/tif_read.c ++++ b/libtiff/tif_read.c +@@ -346,7 +346,7 @@ TIFFReadEncodedStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size) + rowsperstrip=td->td_rowsperstrip; + if (rowsperstrip>td->td_imagelength) + rowsperstrip=td->td_imagelength; +- stripsperplane=((td->td_imagelength+rowsperstrip-1)/rowsperstrip); ++ stripsperplane= TIFFhowmany_32_maxuint_compat(td->td_imagelength, rowsperstrip); + stripinplane=(strip%stripsperplane); + plane=(uint16)(strip/stripsperplane); + rows=td->td_imagelength-stripinplane*rowsperstrip; +diff --git a/libtiff/tiffiop.h b/libtiff/tiffiop.h +index ffbb647b..cb59460a 100644 +--- a/libtiff/tiffiop.h ++++ b/libtiff/tiffiop.h +@@ -250,6 +250,10 @@ struct tiff { + #define TIFFhowmany_32(x, y) (((uint32)x < (0xffffffff - (uint32)(y-1))) ? \ + ((((uint32)(x))+(((uint32)(y))-1))/((uint32)(y))) : \ + 0U) ++/* Variant of TIFFhowmany_32() that doesn't return 0 if x close to MAXUINT. */ ++/* Caution: TIFFhowmany_32_maxuint_compat(x,y)*y might overflow */ ++#define TIFFhowmany_32_maxuint_compat(x, y) \ ++ (((uint32)(x) / (uint32)(y)) + ((((uint32)(x) % (uint32)(y)) != 0) ? 1 : 0)) + #define TIFFhowmany8_32(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3) + #define TIFFroundup_32(x, y) (TIFFhowmany_32(x,y)*(y)) + #define TIFFhowmany_64(x, y) ((((uint64)(x))+(((uint64)(y))-1))/((uint64)(y))) +-- +2.11.0 + diff --git a/package/tiff/0002-libtiff-tif_ojpeg.c-make-OJPEGDecode-early-exit-in-c.patch b/package/tiff/0002-libtiff-tif_ojpeg.c-make-OJPEGDecode-early-exit-in-c.patch new file mode 100644 index 000000000..d99b9007e --- /dev/null +++ b/package/tiff/0002-libtiff-tif_ojpeg.c-make-OJPEGDecode-early-exit-in-c.patch @@ -0,0 +1,53 @@ +From 43bc256d8ae44b92d2734a3c5bc73957a4d7c1ec Mon Sep 17 00:00:00 2001 +From: erouault +Date: Sat, 3 Dec 2016 11:15:18 +0000 +Subject: [PATCH] * libtiff/tif_ojpeg.c: make OJPEGDecode() early exit in case + of failure in OJPEGPreDecode(). This will avoid a divide by zero, and + potential other issues. Reported by Agostino Sarubbo. Fixes + http://bugzilla.maptools.org/show_bug.cgi?id=2611 + +Fixes CVE-2016-10267 + +Signed-off-by: Peter Korsgaard +--- + libtiff/tif_ojpeg.c | 8 ++++++++ + 1 files changed, 15 insertions(+) + +diff --git a/libtiff/tif_ojpeg.c b/libtiff/tif_ojpeg.c +index 1ccc3f9b..f19e8fd0 100644 +--- a/libtiff/tif_ojpeg.c ++++ b/libtiff/tif_ojpeg.c +@@ -244,6 +244,7 @@ typedef enum { + + typedef struct { + TIFF* tif; ++ int decoder_ok; + #ifndef LIBJPEG_ENCAP_EXTERNAL + JMP_BUF exit_jmpbuf; + #endif +@@ -722,6 +723,7 @@ OJPEGPreDecode(TIFF* tif, uint16 s) + } + sp->write_curstrile++; + } ++ sp->decoder_ok = 1; + return(1); + } + +@@ -784,8 +786,14 @@ OJPEGPreDecodeSkipScanlines(TIFF* tif) + static int + OJPEGDecode(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s) + { ++ static const char module[]="OJPEGDecode"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + (void)s; ++ if( !sp->decoder_ok ) ++ { ++ TIFFErrorExt(tif->tif_clientdata,module,"Cannot decode: decoder not correctly initialized"); ++ return 0; ++ } + if (sp->libjpeg_jpeg_query_style==0) + { + if (OJPEGDecodeRaw(tif,buf,cc)==0) +-- +2.11.0 + diff --git a/package/tiff/0003-libtiff-tif_pixarlog.c-libtiff-tif_luv.c-fix-heap-ba.patch b/package/tiff/0003-libtiff-tif_pixarlog.c-libtiff-tif_luv.c-fix-heap-ba.patch new file mode 100644 index 000000000..290834ec0 --- /dev/null +++ b/package/tiff/0003-libtiff-tif_pixarlog.c-libtiff-tif_luv.c-fix-heap-ba.patch @@ -0,0 +1,110 @@ +From 1044b43637fa7f70fb19b93593777b78bd20da86 Mon Sep 17 00:00:00 2001 +From: erouault +Date: Fri, 2 Dec 2016 23:05:51 +0000 +Subject: [PATCH] * libtiff/tif_pixarlog.c, libtiff/tif_luv.c: fix heap-based + buffer overflow on generation of PixarLog / LUV compressed files, with + ColorMap, TransferFunction attached and nasty plays with bitspersample. The + fix for LUV has not been tested, but suffers from the same kind of issue of + PixarLog. Reported by Agostino Sarubbo. Fixes + http://bugzilla.maptools.org/show_bug.cgi?id=2604 + +Fixes CVE-2016-10269 + +Signed-off-by: Peter Korsgaard +--- + libtiff/tif_luv.c | 18 ++++++++++++++---- + libtiff/tif_pixarlog.c | 17 +++++++++++++++-- + 2 files changed, 39 insertions(+), 6 deletions(-) + +diff --git a/libtiff/tif_luv.c b/libtiff/tif_luv.c +index f68a9b13..e6783db5 100644 +--- a/libtiff/tif_luv.c ++++ b/libtiff/tif_luv.c +@@ -158,6 +158,7 @@ + typedef struct logLuvState LogLuvState; + + struct logLuvState { ++ int encoder_state; /* 1 if encoder correctly initialized */ + int user_datafmt; /* user data format */ + int encode_meth; /* encoding method */ + int pixel_size; /* bytes per pixel */ +@@ -1552,6 +1553,7 @@ LogLuvSetupEncode(TIFF* tif) + td->td_photometric, "must be either LogLUV or LogL"); + break; + } ++ sp->encoder_state = 1; + return (1); + notsupported: + TIFFErrorExt(tif->tif_clientdata, module, +@@ -1563,19 +1565,27 @@ notsupported: + static void + LogLuvClose(TIFF* tif) + { ++ LogLuvState* sp = (LogLuvState*) tif->tif_data; + TIFFDirectory *td = &tif->tif_dir; + ++ assert(sp != 0); + /* + * For consistency, we always want to write out the same + * bitspersample and sampleformat for our TIFF file, + * regardless of the data format being used by the application. + * Since this routine is called after tags have been set but + * before they have been recorded in the file, we reset them here. ++ * Note: this is really a nasty approach. See PixarLogClose + */ +- td->td_samplesperpixel = +- (td->td_photometric == PHOTOMETRIC_LOGL) ? 1 : 3; +- td->td_bitspersample = 16; +- td->td_sampleformat = SAMPLEFORMAT_INT; ++ if( sp->encoder_state ) ++ { ++ /* See PixarLogClose. Might avoid issues with tags whose size depends ++ * on those below, but not completely sure this is enough. */ ++ td->td_samplesperpixel = ++ (td->td_photometric == PHOTOMETRIC_LOGL) ? 1 : 3; ++ td->td_bitspersample = 16; ++ td->td_sampleformat = SAMPLEFORMAT_INT; ++ } + } + + static void +diff --git a/libtiff/tif_pixarlog.c b/libtiff/tif_pixarlog.c +index d1246c3d..aa99bc92 100644 +--- a/libtiff/tif_pixarlog.c ++++ b/libtiff/tif_pixarlog.c +@@ -1233,8 +1233,10 @@ PixarLogPostEncode(TIFF* tif) + static void + PixarLogClose(TIFF* tif) + { ++ PixarLogState* sp = (PixarLogState*) tif->tif_data; + TIFFDirectory *td = &tif->tif_dir; + ++ assert(sp != 0); + /* In a really sneaky (and really incorrect, and untruthful, and + * troublesome, and error-prone) maneuver that completely goes against + * the spirit of TIFF, and breaks TIFF, on close, we covertly +@@ -1243,8 +1245,19 @@ PixarLogClose(TIFF* tif) + * readers that don't know about PixarLog, or how to set + * the PIXARLOGDATFMT pseudo-tag. + */ +- td->td_bitspersample = 8; +- td->td_sampleformat = SAMPLEFORMAT_UINT; ++ ++ if (sp->state&PLSTATE_INIT) { ++ /* We test the state to avoid an issue such as in ++ * http://bugzilla.maptools.org/show_bug.cgi?id=2604 ++ * What appends in that case is that the bitspersample is 1 and ++ * a TransferFunction is set. The size of the TransferFunction ++ * depends on 1<td_bitspersample = 8; ++ td->td_sampleformat = SAMPLEFORMAT_UINT; ++ } + } + + static void +-- +2.11.0 + diff --git a/package/tiff/0004-libtiff-tif_dirread.c-modify-ChopUpSingleUncompresse.patch b/package/tiff/0004-libtiff-tif_dirread.c-modify-ChopUpSingleUncompresse.patch new file mode 100644 index 000000000..a24d5d848 --- /dev/null +++ b/package/tiff/0004-libtiff-tif_dirread.c-modify-ChopUpSingleUncompresse.patch @@ -0,0 +1,107 @@ +From 9a72a69e035ee70ff5c41541c8c61cd97990d018 Mon Sep 17 00:00:00 2001 +From: erouault +Date: Sat, 3 Dec 2016 11:02:15 +0000 +Subject: [PATCH] * libtiff/tif_dirread.c: modify + ChopUpSingleUncompressedStrip() to instanciate compute ntrips as + TIFFhowmany_32(td->td_imagelength, rowsperstrip), instead of a logic based on + the total size of data. Which is faulty is the total size of data is not + sufficient to fill the whole image, and thus results in reading outside of + the StripByCounts/StripOffsets arrays when using TIFFReadScanline(). Reported + by Agostino Sarubbo. Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2608. + +* libtiff/tif_strip.c: revert the change in TIFFNumberOfStrips() done +for http://bugzilla.maptools.org/show_bug.cgi?id=2587 / CVE-2016-9273 since +the above change is a better fix that makes it unnecessary. + +Fixes CVE-2016-10270 + +Signed-off-by: Peter Korsgaard +--- + libtiff/tif_dirread.c | 22 ++++++++++------------ + libtiff/tif_strip.c | 9 --------- + 2 files changed, 25 insertions(+), 21 deletions(-) + +diff --git a/libtiff/tif_dirread.c b/libtiff/tif_dirread.c +index 3eec79c9..570d0c32 100644 +--- a/libtiff/tif_dirread.c ++++ b/libtiff/tif_dirread.c +@@ -5502,8 +5502,7 @@ ChopUpSingleUncompressedStrip(TIFF* tif) + uint64 rowblockbytes; + uint64 stripbytes; + uint32 strip; +- uint64 nstrips64; +- uint32 nstrips32; ++ uint32 nstrips; + uint32 rowsperstrip; + uint64* newcounts; + uint64* newoffsets; +@@ -5534,18 +5533,17 @@ ChopUpSingleUncompressedStrip(TIFF* tif) + return; + + /* +- * never increase the number of strips in an image ++ * never increase the number of rows per strip + */ + if (rowsperstrip >= td->td_rowsperstrip) + return; +- nstrips64 = TIFFhowmany_64(bytecount, stripbytes); +- if ((nstrips64==0)||(nstrips64>0xFFFFFFFF)) /* something is wonky, do nothing. */ +- return; +- nstrips32 = (uint32)nstrips64; ++ nstrips = TIFFhowmany_32(td->td_imagelength, rowsperstrip); ++ if( nstrips == 0 ) ++ return; + +- newcounts = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64), ++ newcounts = (uint64*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint64), + "for chopped \"StripByteCounts\" array"); +- newoffsets = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64), ++ newoffsets = (uint64*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint64), + "for chopped \"StripOffsets\" array"); + if (newcounts == NULL || newoffsets == NULL) { + /* +@@ -5562,18 +5560,18 @@ ChopUpSingleUncompressedStrip(TIFF* tif) + * Fill the strip information arrays with new bytecounts and offsets + * that reflect the broken-up format. + */ +- for (strip = 0; strip < nstrips32; strip++) { ++ for (strip = 0; strip < nstrips; strip++) { + if (stripbytes > bytecount) + stripbytes = bytecount; + newcounts[strip] = stripbytes; +- newoffsets[strip] = offset; ++ newoffsets[strip] = stripbytes ? offset : 0; + offset += stripbytes; + bytecount -= stripbytes; + } + /* + * Replace old single strip info with multi-strip info. + */ +- td->td_stripsperimage = td->td_nstrips = nstrips32; ++ td->td_stripsperimage = td->td_nstrips = nstrips; + TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip); + + _TIFFfree(td->td_stripbytecount); +diff --git a/libtiff/tif_strip.c b/libtiff/tif_strip.c +index 4c46ecf5..1676e47d 100644 +--- a/libtiff/tif_strip.c ++++ b/libtiff/tif_strip.c +@@ -63,15 +63,6 @@ TIFFNumberOfStrips(TIFF* tif) + TIFFDirectory *td = &tif->tif_dir; + uint32 nstrips; + +- /* If the value was already computed and store in td_nstrips, then return it, +- since ChopUpSingleUncompressedStrip might have altered and resized the +- since the td_stripbytecount and td_stripoffset arrays to the new value +- after the initial affectation of td_nstrips = TIFFNumberOfStrips() in +- tif_dirread.c ~line 3612. +- See http://bugzilla.maptools.org/show_bug.cgi?id=2587 */ +- if( td->td_nstrips ) +- return td->td_nstrips; +- + nstrips = (td->td_rowsperstrip == (uint32) -1 ? 1 : + TIFFhowmany_32(td->td_imagelength, td->td_rowsperstrip)); + if (td->td_planarconfig == PLANARCONFIG_SEPARATE) +-- +2.11.0 + diff --git a/package/tiff/0005-tools-tiffcp.c-error-out-cleanly-in-cpContig2Separat.patch b/package/tiff/0005-tools-tiffcp.c-error-out-cleanly-in-cpContig2Separat.patch new file mode 100644 index 000000000..c93be89e7 --- /dev/null +++ b/package/tiff/0005-tools-tiffcp.c-error-out-cleanly-in-cpContig2Separat.patch @@ -0,0 +1,74 @@ +From 5c080298d59efa53264d7248bbe3a04660db6ef7 Mon Sep 17 00:00:00 2001 +From: erouault +Date: Wed, 11 Jan 2017 19:25:44 +0000 +Subject: [PATCH] * tools/tiffcp.c: error out cleanly in cpContig2SeparateByRow + and cpSeparate2ContigByRow if BitsPerSample != 8 to avoid heap based + overflow. Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2656 and + http://bugzilla.maptools.org/show_bug.cgi?id=2657 + +Fixes CVE-2017-5225 + +Signed-off-by: Peter Korsgaard +--- + tools/tiffcp.c | 24 ++++++++++++++++++++++-- + 1 file changed, 29 insertions(+), 2 deletions(-) + +diff --git a/tools/tiffcp.c b/tools/tiffcp.c +index bdf754c3..8bbcd52f 100644 +--- a/tools/tiffcp.c ++++ b/tools/tiffcp.c +@@ -591,7 +591,7 @@ static copyFunc pickCopyFunc(TIFF*, TIFF*, uint16, uint16); + static int + tiffcp(TIFF* in, TIFF* out) + { +- uint16 bitspersample, samplesperpixel = 1; ++ uint16 bitspersample = 1, samplesperpixel = 1; + uint16 input_compression, input_photometric = PHOTOMETRIC_MINISBLACK; + copyFunc cf; + uint32 width, length; +@@ -1067,6 +1067,16 @@ DECLAREcpFunc(cpContig2SeparateByRow) + register uint32 n; + uint32 row; + tsample_t s; ++ uint16 bps = 0; ++ ++ (void) TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps); ++ if( bps != 8 ) ++ { ++ TIFFError(TIFFFileName(in), ++ "Error, can only handle BitsPerSample=8 in %s", ++ "cpContig2SeparateByRow"); ++ return 0; ++ } + + inbuf = _TIFFmalloc(scanlinesizein); + outbuf = _TIFFmalloc(scanlinesizeout); +@@ -1120,6 +1130,16 @@ DECLAREcpFunc(cpSeparate2ContigByRow) + register uint32 n; + uint32 row; + tsample_t s; ++ uint16 bps = 0; ++ ++ (void) TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps); ++ if( bps != 8 ) ++ { ++ TIFFError(TIFFFileName(in), ++ "Error, can only handle BitsPerSample=8 in %s", ++ "cpSeparate2ContigByRow"); ++ return 0; ++ } + + inbuf = _TIFFmalloc(scanlinesizein); + outbuf = _TIFFmalloc(scanlinesizeout); +@@ -1784,7 +1804,7 @@ pickCopyFunc(TIFF* in, TIFF* out, uint16 bitspersample, uint16 samplesperpixel) + uint32 w, l, tw, tl; + int bychunk; + +- (void) TIFFGetField(in, TIFFTAG_PLANARCONFIG, &shortv); ++ (void) TIFFGetFieldDefaulted(in, TIFFTAG_PLANARCONFIG, &shortv); + if (shortv != config && bitspersample != 8 && samplesperpixel > 1) { + fprintf(stderr, + "%s: Cannot handle different planar configuration w/ bits/sample != 8\n", +-- +2.11.0 + diff --git a/package/tiff/0006-libtiff-tif_getimage.c-add-explicit-uint32-cast-in-p.patch b/package/tiff/0006-libtiff-tif_getimage.c-add-explicit-uint32-cast-in-p.patch new file mode 100644 index 000000000..b3d8a40bb --- /dev/null +++ b/package/tiff/0006-libtiff-tif_getimage.c-add-explicit-uint32-cast-in-p.patch @@ -0,0 +1,31 @@ +From 48780b4fcc425cddc4ef8ffdf536f96a0d1b313b Mon Sep 17 00:00:00 2001 +From: erouault +Date: Wed, 11 Jan 2017 16:38:26 +0000 +Subject: [PATCH] libtiff/tif_getimage.c: add explicit uint32 cast in putagreytile to + avoid UndefinedBehaviorSanitizer warning. + Patch by Nicolás Peña. + Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2658 + +Fixes CVE-2017-7592 + +Signed-off-by: Peter Korsgaard +--- + libtiff/tif_getimage.c | 2 +- + 1 file changed, 8 insertions(+), 1 deletion(-) + +diff --git a/libtiff/tif_getimage.c b/libtiff/tif_getimage.c +index fed31f1f..2fa1775c 100644 +--- a/libtiff/tif_getimage.c ++++ b/libtiff/tif_getimage.c +@@ -1302,7 +1302,7 @@ DECLAREContigPutFunc(putagreytile) + while (h-- > 0) { + for (x = w; x-- > 0;) + { +- *cp++ = BWmap[*pp][0] & (*(pp+1) << 24 | ~A1); ++ *cp++ = BWmap[*pp][0] & ((uint32)*(pp+1) << 24 | ~A1); + pp += samplesperpixel; + } + cp += toskew; +-- +2.11.0 + diff --git a/package/tiff/0007-libtiff-tiffiop.h-tif_unix.c-tif_win32.c-tif_vms.c-a.patch b/package/tiff/0007-libtiff-tiffiop.h-tif_unix.c-tif_win32.c-tif_vms.c-a.patch new file mode 100644 index 000000000..ec45bbe1f --- /dev/null +++ b/package/tiff/0007-libtiff-tiffiop.h-tif_unix.c-tif_win32.c-tif_vms.c-a.patch @@ -0,0 +1,88 @@ +From d60332057b9575ada4f264489582b13e30137be1 Mon Sep 17 00:00:00 2001 +From: erouault +Date: Wed, 11 Jan 2017 19:02:49 +0000 +Subject: [PATCH] * libtiff/tiffiop.h, tif_unix.c, tif_win32.c, tif_vms.c: add + _TIFFcalloc() + +* libtiff/tif_read.c: TIFFReadBufferSetup(): use _TIFFcalloc() to zero +initialize tif_rawdata. +Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2651 + +Fixes CVE-2017-7593 + +Signed-off-by: Peter Korsgaard +--- + libtiff/tif_read.c | 4 +++- + libtiff/tif_unix.c | 8 ++++++++ + libtiff/tif_win32.c | 8 ++++++++ + libtiff/tiffio.h | 1 + + 4 files changed, 36 insertions(+), 1 deletion(-) + +diff --git a/libtiff/tif_read.c b/libtiff/tif_read.c +index 277fdd69..4535ccb3 100644 +--- a/libtiff/tif_read.c ++++ b/libtiff/tif_read.c +@@ -985,7 +985,9 @@ TIFFReadBufferSetup(TIFF* tif, void* bp, tmsize_t size) + "Invalid buffer size"); + return (0); + } +- tif->tif_rawdata = (uint8*) _TIFFmalloc(tif->tif_rawdatasize); ++ /* Initialize to zero to avoid uninitialized buffers in case of */ ++ /* short reads (http://bugzilla.maptools.org/show_bug.cgi?id=2651) */ ++ tif->tif_rawdata = (uint8*) _TIFFcalloc(1, tif->tif_rawdatasize); + tif->tif_flags |= TIFF_MYBUFFER; + } + if (tif->tif_rawdata == NULL) { +diff --git a/libtiff/tif_unix.c b/libtiff/tif_unix.c +index 7c7bc961..89dd32e8 100644 +--- a/libtiff/tif_unix.c ++++ b/libtiff/tif_unix.c +@@ -316,6 +316,14 @@ _TIFFmalloc(tmsize_t s) + return (malloc((size_t) s)); + } + ++void* _TIFFcalloc(tmsize_t nmemb, tmsize_t siz) ++{ ++ if( nmemb == 0 || siz == 0 ) ++ return ((void *) NULL); ++ ++ return calloc((size_t) nmemb, (size_t)siz); ++} ++ + void + _TIFFfree(void* p) + { +diff --git a/libtiff/tif_win32.c b/libtiff/tif_win32.c +index d730b3ab..3e9001b7 100644 +--- a/libtiff/tif_win32.c ++++ b/libtiff/tif_win32.c +@@ -360,6 +360,14 @@ _TIFFmalloc(tmsize_t s) + return (malloc((size_t) s)); + } + ++void* _TIFFcalloc(tmsize_t nmemb, tmsize_t siz) ++{ ++ if( nmemb == 0 || siz == 0 ) ++ return ((void *) NULL); ++ ++ return calloc((size_t) nmemb, (size_t)siz); ++} ++ + void + _TIFFfree(void* p) + { +diff --git a/libtiff/tiffio.h b/libtiff/tiffio.h +index 732da17f..fbd9171f 100644 +--- a/libtiff/tiffio.h ++++ b/libtiff/tiffio.h +@@ -293,6 +293,7 @@ extern TIFFCodec* TIFFGetConfiguredCODECs(void); + */ + + extern void* _TIFFmalloc(tmsize_t s); ++extern void* _TIFFcalloc(tmsize_t nmemb, tmsize_t siz); + extern void* _TIFFrealloc(void* p, tmsize_t s); + extern void _TIFFmemset(void* p, int v, tmsize_t c); + extern void _TIFFmemcpy(void* d, const void* s, tmsize_t c); +-- +2.11.0 + diff --git a/package/tiff/0008-libtiff-tif_ojpeg.c-fix-leak-in-OJPEGReadHeaderInfoS.patch b/package/tiff/0008-libtiff-tif_ojpeg.c-fix-leak-in-OJPEGReadHeaderInfoS.patch new file mode 100644 index 000000000..418a3d698 --- /dev/null +++ b/package/tiff/0008-libtiff-tif_ojpeg.c-fix-leak-in-OJPEGReadHeaderInfoS.patch @@ -0,0 +1,43 @@ +From 2ea32f7372b65c24b2816f11c04bf59b5090d05b Mon Sep 17 00:00:00 2001 +From: erouault +Date: Thu, 12 Jan 2017 19:23:20 +0000 +Subject: [PATCH] * libtiff/tif_ojpeg.c: fix leak in + OJPEGReadHeaderInfoSecTablesQTable, OJPEGReadHeaderInfoSecTablesDcTable and + OJPEGReadHeaderInfoSecTablesAcTable + +Fixes CVE-2017-7594 + +Signed-off-by: Peter Korsgaard +--- + libtiff/tif_ojpeg.c | 6 ++++++ + 1 file changed, 8 insertions(+), 1 deletion(-) + +diff --git a/libtiff/tif_ojpeg.c b/libtiff/tif_ojpeg.c +index b92f0ebd..5f6c684c 100644 +--- a/libtiff/tif_ojpeg.c ++++ b/libtiff/tif_ojpeg.c +@@ -1790,7 +1790,10 @@ OJPEGReadHeaderInfoSecTablesQTable(TIFF* tif) + TIFFSeekFile(tif,sp->qtable_offset[m],SEEK_SET); + p=(uint32)TIFFReadFile(tif,&ob[sizeof(uint32)+5],64); + if (p!=64) ++ { ++ _TIFFfree(ob); + return(0); ++ } + sp->qtable[m]=ob; + sp->sof_tq[m]=m; + } +@@ -1854,7 +1857,10 @@ OJPEGReadHeaderInfoSecTablesDcTable(TIFF* tif) + rb[sizeof(uint32)+5+n]=o[n]; + p=(uint32)TIFFReadFile(tif,&(rb[sizeof(uint32)+21]),q); + if (p!=q) ++ { ++ _TIFFfree(rb); + return(0); ++ } + sp->dctable[m]=rb; + sp->sos_tda[m]=(m<<4); + } +-- +2.11.0 + diff --git a/package/tiff/0009-libtiff-tif_ojpeg.c-fix-leak-in-OJPEGReadHeaderInfoS.patch b/package/tiff/0009-libtiff-tif_ojpeg.c-fix-leak-in-OJPEGReadHeaderInfoS.patch new file mode 100644 index 000000000..a1aae2dce --- /dev/null +++ b/package/tiff/0009-libtiff-tif_ojpeg.c-fix-leak-in-OJPEGReadHeaderInfoS.patch @@ -0,0 +1,36 @@ +From 8283e4d1b7e53340684d12932880cbcbaf23a8c1 Mon Sep 17 00:00:00 2001 +From: erouault +Date: Thu, 12 Jan 2017 17:43:25 +0000 +Subject: [PATCH] libtiff/tif_ojpeg.c: fix leak in + OJPEGReadHeaderInfoSecTablesAcTable when read fails. + Patch by Nicolás Peña. + Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2659 +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Fixes CVE-2017-7594 + +Signed-off-by: Peter Korsgaard +--- + libtiff/tif_ojpeg.c | 3 +++ + 1 file changed, 10 insertions(+) + +diff --git a/libtiff/tif_ojpeg.c b/libtiff/tif_ojpeg.c +index f19e8fd0..b92f0ebd 100644 +--- a/libtiff/tif_ojpeg.c ++++ b/libtiff/tif_ojpeg.c +@@ -1918,7 +1918,10 @@ OJPEGReadHeaderInfoSecTablesAcTable(TIFF* tif) + rb[sizeof(uint32)+5+n]=o[n]; + p=(uint32)TIFFReadFile(tif,&(rb[sizeof(uint32)+21]),q); + if (p!=q) ++ { ++ _TIFFfree(rb); + return(0); ++ } + sp->actable[m]=rb; + sp->sos_tda[m]=(sp->sos_tda[m]|m); + } +-- +2.11.0 + diff --git a/package/tiff/0010-libtiff-tif_jpeg.c-avoid-integer-division-by-zero-in.patch b/package/tiff/0010-libtiff-tif_jpeg.c-avoid-integer-division-by-zero-in.patch new file mode 100644 index 000000000..862aae2a5 --- /dev/null +++ b/package/tiff/0010-libtiff-tif_jpeg.c-avoid-integer-division-by-zero-in.patch @@ -0,0 +1,35 @@ +From 47f2fb61a3a64667bce1a8398a8fcb1b348ff122 Mon Sep 17 00:00:00 2001 +From: erouault +Date: Wed, 11 Jan 2017 12:15:01 +0000 +Subject: [PATCH] * libtiff/tif_jpeg.c: avoid integer division by zero in + JPEGSetupEncode() when horizontal or vertical sampling is set to 0. Fixes + http://bugzilla.maptools.org/show_bug.cgi?id=2653 + +Fixes CVE-2017-7595 + +Signed-off-by: Peter Korsgaard +--- + libtiff/tif_jpeg.c | 7 +++++++ + 1 file changed, 13 insertions(+) + +diff --git a/libtiff/tif_jpeg.c b/libtiff/tif_jpeg.c +index 38595f98..6c17c388 100644 +--- a/libtiff/tif_jpeg.c ++++ b/libtiff/tif_jpeg.c +@@ -1626,6 +1626,13 @@ JPEGSetupEncode(TIFF* tif) + case PHOTOMETRIC_YCBCR: + sp->h_sampling = td->td_ycbcrsubsampling[0]; + sp->v_sampling = td->td_ycbcrsubsampling[1]; ++ if( sp->h_sampling == 0 || sp->v_sampling == 0 ) ++ { ++ TIFFErrorExt(tif->tif_clientdata, module, ++ "Invalig horizontal/vertical sampling value"); ++ return (0); ++ } ++ + /* + * A ReferenceBlackWhite field *must* be present since the + * default value is inappropriate for YCbCr. Fill in the +-- +2.11.0 + diff --git a/package/tiff/0011-libtiff-tif_dirread.c-avoid-division-by-floating-poi.patch b/package/tiff/0011-libtiff-tif_dirread.c-avoid-division-by-floating-poi.patch new file mode 100644 index 000000000..c0c94291a --- /dev/null +++ b/package/tiff/0011-libtiff-tif_dirread.c-avoid-division-by-floating-poi.patch @@ -0,0 +1,47 @@ +From 3cfd62d77c2a7e147a05bd678524c345fa9c2bb8 Mon Sep 17 00:00:00 2001 +From: erouault +Date: Wed, 11 Jan 2017 13:28:01 +0000 +Subject: [PATCH] * libtiff/tif_dirread.c: avoid division by floating point 0 + in TIFFReadDirEntryCheckedRational() and TIFFReadDirEntryCheckedSrational(), + and return 0 in that case (instead of infinity as before presumably) + Apparently some sanitizers do not like those divisions by zero. Fixes + http://bugzilla.maptools.org/show_bug.cgi?id=2644 + +Fixes CVE-2017-7598 + +Signed-off-by: Peter Korsgaard +--- + libtiff/tif_dirread.c | 10 ++++++++-- + 1 file changed, 16 insertions(+), 2 deletions(-) + +diff --git a/libtiff/tif_dirread.c b/libtiff/tif_dirread.c +index 570d0c32..8a1e42aa 100644 +--- a/libtiff/tif_dirread.c ++++ b/libtiff/tif_dirread.c +@@ -2872,7 +2872,10 @@ static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedRational(TIFF* tif, TIFFD + m.l = direntry->tdir_offset.toff_long8; + if (tif->tif_flags&TIFF_SWAB) + TIFFSwabArrayOfLong(m.i,2); +- if (m.i[0]==0) ++ /* Not completely sure what we should do when m.i[1]==0, but some */ ++ /* sanitizers do not like division by 0.0: */ ++ /* http://bugzilla.maptools.org/show_bug.cgi?id=2644 */ ++ if (m.i[0]==0 || m.i[1]==0) + *value=0.0; + else + *value=(double)m.i[0]/(double)m.i[1]; +@@ -2900,7 +2903,10 @@ static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSrational(TIFF* tif, TIFF + m.l=direntry->tdir_offset.toff_long8; + if (tif->tif_flags&TIFF_SWAB) + TIFFSwabArrayOfLong(m.i,2); +- if ((int32)m.i[0]==0) ++ /* Not completely sure what we should do when m.i[1]==0, but some */ ++ /* sanitizers do not like division by 0.0: */ ++ /* http://bugzilla.maptools.org/show_bug.cgi?id=2644 */ ++ if ((int32)m.i[0]==0 || m.i[1]==0) + *value=0.0; + else + *value=(double)((int32)m.i[0])/(double)m.i[1]; +-- +2.11.0 + diff --git a/package/tiff/0012-libtiff-tif_jpeg.c-validate-BitsPerSample-in-JPEGSet.patch b/package/tiff/0012-libtiff-tif_jpeg.c-validate-BitsPerSample-in-JPEGSet.patch new file mode 100644 index 000000000..4f46d9bb0 --- /dev/null +++ b/package/tiff/0012-libtiff-tif_jpeg.c-validate-BitsPerSample-in-JPEGSet.patch @@ -0,0 +1,35 @@ +From 0a76a8c765c7b8327c59646284fa78c3c27e5490 Mon Sep 17 00:00:00 2001 +From: erouault +Date: Wed, 11 Jan 2017 16:13:50 +0000 +Subject: [PATCH] * libtiff/tif_jpeg.c: validate BitsPerSample in + JPEGSetupEncode() to avoid undefined behaviour caused by invalid shift + exponent. Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2648 + +Fixes CVE-2017-7601 + +Signed-off-by: Peter Korsgaard +--- + libtiff/tif_jpeg.c | 7 +++++++ + 1 file changed, 13 insertions(+) + +diff --git a/libtiff/tif_jpeg.c b/libtiff/tif_jpeg.c +index 6c17c388..192989a9 100644 +--- a/libtiff/tif_jpeg.c ++++ b/libtiff/tif_jpeg.c +@@ -1632,6 +1632,13 @@ JPEGSetupEncode(TIFF* tif) + "Invalig horizontal/vertical sampling value"); + return (0); + } ++ if( td->td_bitspersample > 16 ) ++ { ++ TIFFErrorExt(tif->tif_clientdata, module, ++ "BitsPerSample %d not allowed for JPEG", ++ td->td_bitspersample); ++ return (0); ++ } + + /* + * A ReferenceBlackWhite field *must* be present since the +-- +2.11.0 + diff --git a/package/tiff/0013-libtiff-tif_read.c-avoid-potential-undefined-behavio.patch b/package/tiff/0013-libtiff-tif_read.c-avoid-potential-undefined-behavio.patch new file mode 100644 index 000000000..d049b130c --- /dev/null +++ b/package/tiff/0013-libtiff-tif_read.c-avoid-potential-undefined-behavio.patch @@ -0,0 +1,56 @@ +From 66e7bd59520996740e4df5495a830b42fae48bc4 Mon Sep 17 00:00:00 2001 +From: erouault +Date: Wed, 11 Jan 2017 16:33:34 +0000 +Subject: [PATCH] * libtiff/tif_read.c: avoid potential undefined behaviour on + signed integer addition in TIFFReadRawStrip1() in isMapped() case. Fixes + http://bugzilla.maptools.org/show_bug.cgi?id=2650 + +Fixes CVE-2017-7602 + +Signed-off-by: Peter Korsgaard +--- + libtiff/tif_read.c | 27 ++++++++++++++++++--------- + 1 file changed, 24 insertions(+), 9 deletions(-) + +diff --git a/libtiff/tif_read.c b/libtiff/tif_read.c +index 52bbf507..b7aacbda 100644 +--- a/libtiff/tif_read.c ++++ b/libtiff/tif_read.c +@@ -420,16 +420,25 @@ TIFFReadRawStrip1(TIFF* tif, uint32 strip, void* buf, tmsize_t size, + return ((tmsize_t)(-1)); + } + } else { +- tmsize_t ma,mb; ++ tmsize_t ma; + tmsize_t n; +- ma=(tmsize_t)td->td_stripoffset[strip]; +- mb=ma+size; +- if ((td->td_stripoffset[strip] > (uint64)TIFF_TMSIZE_T_MAX)||(ma>tif->tif_size)) +- n=0; +- else if ((mbtif->tif_size)) +- n=tif->tif_size-ma; +- else +- n=size; ++ if ((td->td_stripoffset[strip] > (uint64)TIFF_TMSIZE_T_MAX)|| ++ ((ma=(tmsize_t)td->td_stripoffset[strip])>tif->tif_size)) ++ { ++ n=0; ++ } ++ else if( ma > TIFF_TMSIZE_T_MAX - size ) ++ { ++ n=0; ++ } ++ else ++ { ++ tmsize_t mb=ma+size; ++ if (mb>tif->tif_size) ++ n=tif->tif_size-ma; ++ else ++ n=size; ++ } + if (n!=size) { + #if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) + TIFFErrorExt(tif->tif_clientdata, module, +-- +2.11.0 +