Full Disclosure mailing list archives
[ GLSA 200804-12 ] gnome-screensaver: Privilege escalation
From: Raphael Marichez <falco () gentoo org>
Date: Fri, 11 Apr 2008 18:10:27 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200804-12 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: gnome-screensaver: Privilege escalation Date: April 11, 2008 Bugs: #213940 ID: 200804-12 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== gnome-screensaver allows local users to bypass authentication under certain configurations. Background ========== gnome-screensaver is a screensaver, designed to integrate with the Gnome desktop, that can replace xscreensaver. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 gnome-extra/gnome-screensaver < 2.20.0-r3 >= 2.20.0-r3 Description =========== gnome-screensaver incorrectly handles the results of the getpwuid() function in the file src/setuid.c when using directory servers (like NIS) during a network outage, a similar issue to GLSA 200705-14. Impact ====== A local user can crash gnome-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 gnome-screensaver users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=gnome-extra/gnome-screensaver-2.20.0-r3" References ========== [ 1 ] CVE-2008-0887 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0887 [ 2 ] GLSA 200705-14 http://www.gentoo.org/security/en/glsa/glsa-200705-14.xml Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200804-12.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 2008 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
Attachment:
_bin
Description:
_______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- [ GLSA 200804-12 ] gnome-screensaver: Privilege escalation Raphael Marichez (Apr 11)