polkit: Heap-corruption on duplicate IDs polkit is vulnerable to local privilege escalation. polkit 2016-11-15 2016-11-15 555666 local 0.113 0.113

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

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

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

There is no known workaround at this time.

All polkit users should upgrade to the latest version:

# emerge --sync # emerge --ask --oneshot --verbose ">=sys-auth/polkit-0.113"
CVE-2015-3255 BlueKnight b-man