CVE-2011-2724 Denial of service in n/a

Low 1.2 Published 6 Sep 2011 Updated 6 Aug 2024

Local attackers can corrupt the mtab file via crafted strings in the Samba mount client, causing a denial of service.

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-2011-2724?

CVE-2011-2724 is a low-severity denial of service vulnerability in Samba Samba, published on 6 Sep 2011. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The check_mtab function in client/mount.cifs.c in mount.cifs in smbfs in Samba 3.5.10 and earlier does not properly verify that the (1) device name and (2) mountpoint strings are composed of valid characters, which allows local users to cause a denial of service (mtab corruption) via a crafted string. NOTE: this vulnerability exists because of an incorrect fix for CVE-2010-0547.

Weakness: CWE-20

Which versions are affected by CVE-2011-2724?

It affects 1 product.

Products include Samba Samba.

How do I fix CVE-2011-2724?

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-2011-2724 being exploited?

There is no known exploitation of CVE-2011-2724 in the wild and no public exploit code.

All Samba Samba vulnerabilities

Sources

Also known as DEBIAN-CVE-2011-2724, ECHO-ab82-53a4-9ee4, GHSA-rv4g-gfv5-499c.