CVE-2024-35962: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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;

Affected products

• Debian Debian Linux: version 10.0 only
• Linux Linux Kernel: from 5.15.154, before 5.15.156 (fixed in 5.15.156); from 6.1.85, before 6.1.87 (fixed in 6.1.87); from 6.6.26, before 6.6.28 (fixed in 6.6.28); from 6.8.5, before 6.8.7 (fixed in 6.8.7); version 5.10.215 only; version 6.9 only

Published 2024-05-20. Last modified 2026-08-04.