CVE-2014-3880 Denial of service in n/a

Medium 4.9 Published 10 Jun 2014 Updated 6 Aug 2024

Local attackers can crash FreeBSD systems via crafted execve calls, causing a triple-fault and reboot.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2014-3880?

CVE-2014-3880 is a medium-severity denial of service vulnerability in Freebsd Freebsd, published on 10 Jun 2014. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The (1) execve and (2) fexecve system calls in the FreeBSD kernel 8.4 before p11, 9.1 before p14, 9.2 before p7, and 10.0 before p4 destroys the virtual memory address space and mappings for a process before all threads have terminated, which allows local users to cause a denial of service (triple-fault and system reboot) via a crafted system call, which triggers an invalid page table pointer dereference.

Weakness: CWE-20

Which versions are affected by CVE-2014-3880?

It affects 1 product.

Products include Freebsd Freebsd.

How do I fix CVE-2014-3880?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2014-3880 being exploited?

There is no known exploitation of CVE-2014-3880 in the wild and no public exploit code.

All Freebsd Freebsd vulnerabilities

Sources

Also known as GHSA-6jrj-79c8-4237.