CVE-2005-2876 Privilege escalation in n/a

High 7.2 Published 13 Sep 2005 Updated 7 Aug 2024

Local attackers with unmount permissions can gain privileges by using the umount -r option to clear security flags on file systems.

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-2005-2876?

CVE-2005-2876 is a high-severity vulnerability in n/a, published on 13 Sep 2005. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

umount in util-linux 2.8 to 2.12q, 2.13-pre1, and 2.13-pre2, and other packages such as loop-aes-utils, allows local users with unmount permissions to gain privileges via the -r (remount) option, which causes the file system to be remounted with just the read-only flag, which effectively clears the nosuid, nodev, and other flags.

Which versions are affected by CVE-2005-2876?

It affects 1 product.

Products include Andries Brouwer Util-Linux.

How do I fix CVE-2005-2876?

Apply the vendor's patch.

Is CVE-2005-2876 being exploited?

There is no known exploitation of CVE-2005-2876 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2005-2876, DSA-823-1, DSA-825-1, GHSA-96fj-vjjr-c856.