GLSA Advocate
Joined: 12 May 2004 Posts: 2663
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Posted: Sun May 13, 2007 10:26 pm Post subject: [ GLSA 200705-14 ] XScreenSaver: Privilege escalation |
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Gentoo Linux Security Advisory
Title: XScreenSaver: Privilege escalation (GLSA 200705-14)
Severity: normal
Exploitable: local
Date: May 13, 2007
Bug(s): #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: x11-misc/xscreensaver
Vulnerable: < 5.02
Unaffected: >= 5.02
Architectures: All supported architectures
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:
Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=x11-misc/xscreensaver-5.02" |
References
CVE-2007-1859
Last edited by GLSA on Wed Mar 06, 2013 4:24 am; edited 2 times in total |
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