CVE-2024-27065: 
Linux Kernel vulnerability analysis and mitigation

CVE-2024-27065 affects the Linux kernel's netfilter subsystem, specifically the nf_tables component. The vulnerability was discovered and disclosed on May 1, 2024, and involves an issue with internal table flags comparison during updates. The vulnerability affects various Linux kernel versions and distributions including Ubuntu, Debian, and Red Hat Enterprise Linux (NVD, Ubuntu).

The vulnerability exists in the netfilter/nftables component where internal table flags were being incorrectly compared during update operations. The issue stems from a comparison that didn't properly handle internal table flags, requiring a fix to restore proper transaction skipping behavior when table updates do not modify flags. The fix involves modifying the comparison to only consider the masked table flags (NFTTABLEFMASK) rather than all flags (Kernel Commit).

The vulnerability affects the netfilter subsystem's table update functionality in the Linux kernel. While specific impact details are not fully disclosed in the available sources, it could potentially affect network filtering operations and table management in the kernel's netfilter framework (NVD).

The vulnerability has been patched in various Linux distributions. Ubuntu has released fixes for multiple kernel versions including 6.8.0-35.35 for noble (24.04 LTS), 5.15.0-112.122 for jammy (22.04 LTS), and 5.4.0-189.209 for focal (20.04 LTS). Debian has also addressed this in version 5.10.216-1 and Red Hat has included fixes in their kernel updates (Ubuntu, Debian).