Gentoo: GLSA-201406-01: D-Bus, GLib: Privilege escalation
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.
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
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.
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.
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.