GLSA-201201-15 : ktsuss: Privilege escalation

This script is Copyright (C) 2012-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-201201-15
(ktsuss: Privilege escalation)

Two vulnerabilities have been found in ktuss:
Under specific circumstances, ktsuss skips authentication and fails
to change the effective UID back to the real UID (CVE-2011-2921).
The GTK interface spawned by the ktsuss binary is run as root
(CVE-2011-2922).

Impact :

A local attacker could gain escalated privileges and use the
'GTK_MODULES' environment variable to possibly execute arbitrary code
with root privileges.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-201201-15.xml

Solution :

Gentoo discontinued support for ktsuss. We recommend that users unmerge
ktsuss:
# emerge --unmerge 'x11-misc/ktsuss'

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 5.3
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Gentoo Local Security Checks

Nessus Plugin ID: 57721 ()

Bugtraq ID: 49151

CVE ID: CVE-2011-2921
CVE-2011-2922