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Alerts This Week
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Alerts This Week
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Gentoo: GLSA-201406-01 High Severity: D-Bus Privilege Escalation Threat

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Calendar Grey June 1, 2014
Scroller Gentoo
A critical alert from Gentoo highlights a serious privilege escalation vulnerability within D-Bus and GLib. Immediate updates are recommended for essential security patches!
A vulnerability has been found in D-Bus which allows local attackers to gain escalated privileges.

Summary

When libdbus is used in a setuid program, a user can gain escalated privileges by leveraging the DBUS_SYSTEM_BUS_ADDRESS variable. GLib can be used in a setuid context with D-Bus, and so can trigger this vulnerability. Please review the CVE identifier below for more details.

Topics%20covered

Topics Covered

security advisory high severity gentoo privilege escalation glib dbus system threat

Resolution

All D-Bus users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/dbus-1.6.8"
All GLib users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/glib-2.32.4-r1"

References

[ 1 ] CVE-2012-3524 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3524

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201406-01
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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: High
Title: D-Bus, GLib: Privilege escalation
Date: June 01, 2014
Bugs: #436028
ID: 201406-01

Topics%20covered

Topics Covered

security advisory high severity gentoo privilege escalation glib dbus system threat

Synopsis

A vulnerability has been found in D-Bus which allows local attackers to gain escalated privileges.

Background

D-Bus is a daemon providing a framework for applications to communicate with one another. GLib is a library providing a number of GNOME's core objects and functions.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-apps/dbus < 1.6.8 >= 1.6.8 2 dev-libs/glib < 2.32.4-r1 >= 2.32.4-r1 ------------------------------------------------------------------- 2 affected packages

Impact

===== A local attacker could gain escalated privileges and execute arbitrary code.

Workaround

There is no known workaround at this time.