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Gentoo: GLSA-202302-14 Normal: polkit Buffer Overflow Threat

gentoo
Calendar Grey November 15, 2016
Dist Gentoo Esm H88
Investigate the potential for local privilege escalation vulnerabilities within polkit. Implement updates to address concerns specified in the Gentoo security advisory GLSA 201611-07.
polkit is vulnerable to local privilege escalation.

Summary

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

Topics%20covered

Topics Covered

security advisory unauthorized access gentoo local privilege escalation heap corruption normal severity polkit

Resolution

All polkit users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-auth/polkit-0.113"

References

[ 1 ] CVE-2015-3255 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-3255

Availability

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

Severity: Normal
Title: polkit: Heap-corruption on duplicate IDs
Date: November 15, 2016
Bugs: #555666
ID: 201611-07

Topics%20covered

Topics Covered

security advisory unauthorized access gentoo local privilege escalation heap corruption normal severity polkit

Synopsis

polkit is vulnerable to local privilege escalation.

Background

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

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-auth/polkit < 0.113 >= 0.113

Impact

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

Workaround

There is no known workaround at this time.

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