|
--gTY1JhLGodeuSBqf
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200705-14
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal
Title: XScreenSaver: Privilege escalation
Date: May 13, 2007
Bugs: #176584
ID: 200705-14
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
=======
XScreenSaver allows local users to bypass authentication under certain
configurations.
Background
=========
XScreenSaver is a widely used screen saver collection shipped on
systems running the X11 Window System.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 x11-misc/xscreensaver < 5.02 >= 5.02
Description
==========
XScreenSaver incorrectly handles the results of the getpwuid() function
in drivers/lock.c when using directory servers during a network outage.
Impact
=====
A local user can crash XScreenSaver by preventing network connectivity
if the system uses a remote directory service for credentials such as
NIS or LDAP, which will unlock the screen.
Workaround
=========
There is no known workaround at this time.
Resolution
=========
All XScreenSaver users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-misc/xscreensaver-5.02"
References
=========
[ 1 ] CVE-2007-1859
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1859
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200705-14.xml
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
http://bugs.gentoo.org.
License
======
Copyright 2007 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
--gTY1JhLGodeuSBqf
Content-Type: application/pgp-signature
Content-Disposition: inline
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)
iQEVAwUBRkeEuDvRww8BFPxFAQIANggAnqRyiDcsedPju5xuLRanAEsTXDO8KyiB
yuB6SEYDU/vkHyGI7ACx7YPunYAJOjWAry+SIpUy02kbLpVyVKaTrOjrPq7hiCG6
ALrf8bghgN1y/Lj3iDyMd6tC5y8nLfDYkR2Hpx/tgd2debAVQgiF68iLIE3juZkU
iIA/qEaCankBTF77k6Q0ngQQ/Wa+Cdse2ThzAupI6hE51Otm5dsis6W09RF9EIUJ
dNUIo4ascwQ5feEOhHkwAB7MAhohQwKS+Dlti5Bf8wIquE6AsPlnrZAost/0TZiu
OYX6yEP6UtVrZQHmPvwio0Eho5fnZ5nK/XI0RDps7xtKPY+RwZD1Gw==wRsP
-----END PGP SIGNATURE-----
--gTY1JhLGodeuSBqf--