Vulnerability Details CVE-2024-35962
In the Linux kernel, the following vulnerability has been resolved:
netfilter: complete validation of user input
In my recent commit, I missed that do_replace() handlers
use copy_from_sockptr() (which I fixed), followed
by unsafe copy_from_sockptr_offset() calls.
In all functions, we can perform the @optlen validation
before even calling xt_alloc_table_info() with the following
check:
if ((u64)optlen < (u64)tmp.size + sizeof(tmp))
return -EINVAL;
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 0.4%
CVSS Severity
CVSS v3 Score 5.5
References
- https://git.kernel.org/stable/c/562b7245131f6e9f1d280c8b5a8750f03edfc05c
- https://git.kernel.org/stable/c/65acf6e0501ac8880a4f73980d01b5d27648b956
- https://git.kernel.org/stable/c/89242d9584c342cb83311b598d9e6b82572eadf8
- https://git.kernel.org/stable/c/97dab36e57c64106e1c8ebd66cbf0d2d1e52d6b7
- https://git.kernel.org/stable/c/c760089aa98289b4b88a7ff5a62dd92845adf223
- https://git.kernel.org/stable/c/cf4bc359b76144a3dd55d7c09464ef4c5f2b2b05
- https://git.kernel.org/stable/c/562b7245131f6e9f1d280c8b5a8750f03edfc05c
- https://git.kernel.org/stable/c/65acf6e0501ac8880a4f73980d01b5d27648b956
- https://git.kernel.org/stable/c/89242d9584c342cb83311b598d9e6b82572eadf8
- https://git.kernel.org/stable/c/97dab36e57c64106e1c8ebd66cbf0d2d1e52d6b7
- https://git.kernel.org/stable/c/c760089aa98289b4b88a7ff5a62dd92845adf223
- https://git.kernel.org/stable/c/cf4bc359b76144a3dd55d7c09464ef4c5f2b2b05
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
Products affected by CVE-2024-35962
-
cpe:2.3:o:debian:debian_linux:10.0
-
cpe:2.3:o:linux:linux_kernel:5.10.215
-
cpe:2.3:o:linux:linux_kernel:5.15.154
-
cpe:2.3:o:linux:linux_kernel:5.15.155
-
cpe:2.3:o:linux:linux_kernel:6.1.85
-
cpe:2.3:o:linux:linux_kernel:6.1.86
-
cpe:2.3:o:linux:linux_kernel:6.6.26
-
cpe:2.3:o:linux:linux_kernel:6.6.27
-
cpe:2.3:o:linux:linux_kernel:6.8.5
-
cpe:2.3:o:linux:linux_kernel:6.8.6
-
cpe:2.3:o:linux:linux_kernel:6.9