Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_tcpmss: check remaining length before reading optlen Quoting reporter: In net/netfilter/xt_tcpmss.c (lines 53-68), the TCP option parser reads op[i+1] directly without validating the remaining option length. If the last byte of the option field is not EOL/NOP (0/1), the code attempts to index op[i+1]. In the case where i + 1 == optlen, this causes an out-of-bounds read, accessing memory past the optlen boundary (either reading beyond the stack buffer _opt or the following payload).
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < f895191dc32c53eaf443b6443fe40945b2f92287affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < cd5beda7e0e32865e214f28034bb92c1cecff885affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < eaedc0bc18be46fe7f58170e967959a932c4f824affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 07a9b32eaae792ff7d0fcac14d8920c937c0a9c3affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 8b300f726640c48c3edfe9c453334dd801f4b74eaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 5e13d0a37666955b6cfddc0f73cb40ed645b8a05affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < f6c412dcfd76b0516d51aa847d8f4c7b70381b09affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 735ee8582da3d239eb0c7a53adca61b79fb228b3affected
Linux Linux
Default version status: affected
2.6.12affected0 to < 2.6.12unaffected5.10.252 to ≤ 5.10.*unaffected5.15.202 to ≤ 5.15.*unaffected6.1.165 to ≤ 6.1.*unaffected6.6.128 to ≤ 6.6.*unaffected6.12.75 to ≤ 6.12.*unaffected6.18.16 to ≤ 6.18.*unaffected6.19.6 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/f895191dc32c53eaf443b6443fe40945b2f92287 ↗
- https://git.kernel.org/stable/c/cd5beda7e0e32865e214f28034bb92c1cecff885 ↗
- https://git.kernel.org/stable/c/eaedc0bc18be46fe7f58170e967959a932c4f824 ↗
- https://git.kernel.org/stable/c/07a9b32eaae792ff7d0fcac14d8920c937c0a9c3 ↗
- https://git.kernel.org/stable/c/8b300f726640c48c3edfe9c453334dd801f4b74e ↗
- https://git.kernel.org/stable/c/5e13d0a37666955b6cfddc0f73cb40ed645b8a05 ↗
- https://git.kernel.org/stable/c/f6c412dcfd76b0516d51aa847d8f4c7b70381b09 ↗
- https://git.kernel.org/stable/c/735ee8582da3d239eb0c7a53adca61b79fb228b3 ↗