CVE-2005-3806: Linux Kernel

Medium severity, CVSS 6.6. EPSS: 0.4% chance of exploitation in the next 30 days.

The IPv6 flow label handling code (ip6_flowlabel.c) in Linux kernels 2.4 up to 2.4.32 and 2.6 before 2.6.14 modifies the wrong variable in certain circumstances, which allows local users to corrupt kernel memory or cause a denial of service (crash) by triggering a free of non-allocated memory.

Affected products

• Linux Linux Kernel: version 2.4.0 only; version 2.4.1 only; version 2.4.2 only; version 2.4.3 only; version 2.4.10 only; version 2.4.11 only; …

Published 2005-11-25. Last modified 2026-06-16.