CVE-2006-5701 Use after free in n/a

What is CVE-2006-5701?

CVE-2006-5701 is a medium-severity use after free vulnerability in Linux kernel, published on 3 Nov 2006. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Double free vulnerability in squashfs module in the Linux kernel 2.6.x, as used in Fedora Core 5 and possibly other distributions, allows local users to cause a denial of service by mounting a crafted squashfs filesystem.

Which versions are affected by CVE-2006-5701?

It affects 2 products.

Products include Linux kernel, Redhat Fedora Core.

How do I fix CVE-2006-5701?

No fix has been published for CVE-2006-5701 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2006-5701 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-5701 exists.

Public exploit code: 1 Exploit-DB entry.

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-gvhq-rx59-r69c.