mbox series

[SRU,Jammy-OEM-5.17/OEM-6.0,0/1] CVE-2023-3390

Message ID 20230803183733.23835-1-yuxuan.luo@canonical.com
Headers show
Series CVE-2023-3390 | expand

Message

Yuxuan Luo Aug. 3, 2023, 6:37 p.m. UTC 
[Impact]
A use-after-free vulnerability was found in the Linux kernel's netfilter
subsystem in net/netfilter/nf_tables_api.c. Mishandled error handling with
NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same
transaction causing a use-after-free vulnerability. This flaw allows a local
attacker with user access to cause a privilege escalation issue. 

[Backport]
It is a clean cherry pick.

[Test]
Compile and boot tested.

[Potential Regression]
Expect low regression potential.

Pablo Neira Ayuso (1):
  netfilter: nf_tables: incorrect error path handling with
    NFT_MSG_NEWRULE

 net/netfilter/nf_tables_api.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Tim Gardner Aug. 3, 2023, 6:49 p.m. UTC | #1 
On 8/3/23 12:37 PM, Yuxuan Luo wrote:
> [Impact]
> A use-after-free vulnerability was found in the Linux kernel's netfilter
> subsystem in net/netfilter/nf_tables_api.c. Mishandled error handling with
> NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same
> transaction causing a use-after-free vulnerability. This flaw allows a local
> attacker with user access to cause a privilege escalation issue.
> 
> [Backport]
> It is a clean cherry pick.
> 
> [Test]
> Compile and boot tested.
> 
> [Potential Regression]
> Expect low regression potential.
> 
> Pablo Neira Ayuso (1):
>    netfilter: nf_tables: incorrect error path handling with
>      NFT_MSG_NEWRULE
> 
>   net/netfilter/nf_tables_api.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Stefan Bader Aug. 4, 2023, 8:04 a.m. UTC | #2 
On 03.08.23 20:37, Yuxuan Luo wrote:
> [Impact]
> A use-after-free vulnerability was found in the Linux kernel's netfilter
> subsystem in net/netfilter/nf_tables_api.c. Mishandled error handling with
> NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same
> transaction causing a use-after-free vulnerability. This flaw allows a local
> attacker with user access to cause a privilege escalation issue.
> 
> [Backport]
> It is a clean cherry pick.
> 
> [Test]
> Compile and boot tested.
> 
> [Potential Regression]
> Expect low regression potential.
> 
> Pablo Neira Ayuso (1):
>    netfilter: nf_tables: incorrect error path handling with
>      NFT_MSG_NEWRULE
> 
>   net/netfilter/nf_tables_api.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 

Acked-by: Stefan Bader <stefan.bader@canonical.com>
Timo Aaltonen Aug. 4, 2023, 11:32 a.m. UTC | #3 
Yuxuan Luo kirjoitti 3.8.2023 klo 21.37:
> [Impact]
> A use-after-free vulnerability was found in the Linux kernel's netfilter
> subsystem in net/netfilter/nf_tables_api.c. Mishandled error handling with
> NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same
> transaction causing a use-after-free vulnerability. This flaw allows a local
> attacker with user access to cause a privilege escalation issue.
> 
> [Backport]
> It is a clean cherry pick.
> 
> [Test]
> Compile and boot tested.
> 
> [Potential Regression]
> Expect low regression potential.
> 
> Pablo Neira Ayuso (1):
>    netfilter: nf_tables: incorrect error path handling with
>      NFT_MSG_NEWRULE
> 
>   net/netfilter/nf_tables_api.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 

applied, thanks