polkit: Heap-corruption on duplicate IDs — GLSA 201611-07

polkit is vulnerable to local privilege escalation.

Affected Packages

sys-auth/polkit on all architectures
Affected versions < 0.113
Unaffected versions >= 0.113

Background

polkit is a toolkit for managing policies relating to unprivileged processes communicating with privileged processes.

Description

A vulnerability was discovered in polkit’s polkit_backend_action_pool_init function due to duplicate action IDs in action descriptions.

Impact

Local attackers are able to gain unauthorized privileges on the system.

Workaround

There is no known workaround at this time.

Resolution

All polkit users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=sys-auth/polkit-0.113"
 

References

Release Date
November 15, 2016

Latest Revision
November 15, 2016: 1

Severity
normal

Exploitable
local

Bugzilla entries