An attacker could trick cifs-utils into corrupting the system mtab file.
Dan Rosenberg discovered that cifs-utils incorrectly handled changes to the mtab file. A local attacker could use this issue to corrupt the mtab file, possibly leading to a denial of service. (CVE-2011-1678)
4 October 2011
A security issue affects these releases of Ubuntu and its derivatives:
An attacker could trick cifs-utils into corrupting the system mtab file.
Dan Rosenberg discovered that cifs-utils incorrectly handled changes to the mtab file. A local attacker could use this issue to corrupt the mtab file, possibly leading to a denial of service. (CVE-2011-1678)
Jan Lieskovsky discovered that cifs-utils incorrectly filtered certain strings being added to the mtab file. A local attacker could use this issue to corrupt the mtab file, possibly leading to a denial of service. (CVE-2011-2724)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
Vulmon