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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200710-18">
<title>util-linux: Local privilege escalation</title>
The mount and umount programs might allow local attackers to gain root
<product type="ebuild">util-linux</product>
<announced>October 18, 2007</announced>
<revised>October 18, 2007: 01</revised>
<package name="sys-apps/util-linux" auto="yes" arch="*">
<unaffected range="ge">2.12r-r8</unaffected>
<vulnerable range="lt">2.12r-r8</vulnerable>
util-linux is a suite of Linux programs including mount and umount,
programs used to mount and unmount filesystems.
Ludwig Nussel discovered that the check_special_mountprog() and
check_special_umountprog() functions call setuid() and setgid() in the
wrong order and do not check the return values, which can lead to
privileges being dropped improperly.
<impact type="high">
A local attacker may be able to exploit this vulnerability by using
mount helpers such as the mount.nfs program to gain root privileges and
run arbitrary commands.
There is no known workaround at this time.
All util-linux users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=sys-apps/util-linux-2.12r-r8&quot;</code>
<uri link="">CVE-2007-5191</uri>
<metadata tag="requester" timestamp="Fri, 12 Oct 2007 17:17:12 +0000">
<metadata tag="bugReady" timestamp="Fri, 12 Oct 2007 17:18:23 +0000">
<metadata tag="submitter" timestamp="Mon, 15 Oct 2007 00:47:53 +0000">