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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200804-12">
<title>gnome-screensaver: Privilege escalation</title>
<synopsis>
gnome-screensaver allows local users to bypass authentication under certain
configurations.
</synopsis>
<product type="ebuild">gnome-screensaver</product>
<announced>April 11, 2008</announced>
<revised>April 11, 2008: 01</revised>
<bug>213940</bug>
<access>local</access>
<affected>
<package name="gnome-extra/gnome-screensaver" auto="yes" arch="*">
<unaffected range="ge">2.20.0-r3</unaffected>
<vulnerable range="lt">2.20.0-r3</vulnerable>
</package>
</affected>
<background>
<p>
gnome-screensaver is a screensaver, designed to integrate with the
Gnome desktop, that can replace xscreensaver.
</p>
</background>
<description>
<p>
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.
</p>
</description>
<impact type="normal">
<p>
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.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All gnome-screensaver users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=gnome-extra/gnome-screensaver-2.20.0-r3&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0887">CVE-2008-0887</uri>
<uri link="/security/en/glsa/glsa-200705-14.xml">GLSA 200705-14</uri>
</references>
<metadata tag="submitter" timestamp="Wed, 09 Apr 2008 17:28:36 +0000">
falco
</metadata>
<metadata tag="bugReady" timestamp="Thu, 10 Apr 2008 13:16:15 +0000">
vorlon
</metadata>
</glsa>