SUS: Local root vulnerability

Background

SUS is a utility that allows regular users to be able to execute certain commands as root.

Description

Leon Juranic found a bug in the logging functionality of SUS that can lead to local privilege escalation. A format string vulnerability exists in the log() function due to an incorrect call to the syslog() function.

Impact

An attacker with local user privileges can potentially exploit this vulnerability to gain root access.

Workaround

There is no known workaround at this time.

Resolution

All SUS users should upgrade to the latest version:

 # emerge sync
 
 # emerge -pv ">=app-admin/sus-2.0.2-r1"
 # emerge ">=app-admin/sus-2.0.2-r1"