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

Severity:normal
Title:polkit: Heap-corruption on duplicate IDs
Date:11/15/2016
Bugs: #555666
ID:201611-07

Synopsis

polkit is vulnerable to local privilege escalation.

Background

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

Affected packages

Package Vulnerable Unaffected Architecture(s)
sys-auth/polkit < 0.113 >= 0.113 All supported architectures

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

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201611-07.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

License

Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.

Thank you!