USN-1953-1: polkit vulnerability

Releases

• Ubuntu 13.04
• Ubuntu 12.10
• Ubuntu 12.04
• Ubuntu 10.04

Packages

• policykit-1 - framework for managing administrative policies and privileges

Details

It was discovered that polkit didn't allow applications to use the pkcheck
tool in a way which prevented a race condition in the UID lookup. A local
attacker could use this flaw to possibly escalate privileges.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 13.04

• policykit-1 - 0.105-1ubuntu1.1

Ubuntu 12.10

• policykit-1 - 0.104-2ubuntu1.1

Ubuntu 12.04

• policykit-1 - 0.104-1ubuntu1.1

Ubuntu 10.04

• policykit-1 - 0.96-2ubuntu0.2

In general, a standard system update will make all the necessary changes.

References

• CVE-2013-4288