CVE-2005-3784 Use after free in n/a

What is CVE-2005-3784?

CVE-2005-3784 is a medium-severity use after free vulnerability in Linux kernel, published on 23 Nov 2005. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The auto-reap of child processes in Linux kernel 2.6 before 2.6.15 includes processes with ptrace attached, which leads to a dangling ptrace reference and allows local users to cause a denial of service (crash) and gain root privileges.

Weakness: CWE-399

Which versions are affected by CVE-2005-3784?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2005-3784?

Upgrade to a fixed version.

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-2005-3784 being exploited?

There is no known exploitation of CVE-2005-3784 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-wcq2-9ggc-f564.