CVE-2005-3806 Memory corruption in n/a

What is CVE-2005-3806?

CVE-2005-3806 is a medium-severity memory corruption vulnerability in Linux kernel, published on 25 Nov 2005. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-399

Which versions are affected by CVE-2005-3806?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2005-3806?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2005-3806 being exploited?

There is no known exploitation of CVE-2005-3806 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-2ccv-gcgj-rvqf.