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Diffstat (limited to 'glsa-200511-17.xml')
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diff --git a/glsa-200511-17.xml b/glsa-200511-17.xml new file mode 100644 index 00000000..b50a3f6a --- /dev/null +++ b/glsa-200511-17.xml @@ -0,0 +1,71 @@ +<?xml version="1.0" encoding="utf-8"?> +<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?> +<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?> +<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> + +<glsa id="200511-17"> + <title>FUSE: mtab corruption through fusermount</title> + <synopsis> + The fusermount utility from FUSE can be abused to corrupt the /etc/mtab + file contents, potentially allowing a local attacker to set unauthorized + mount options. + </synopsis> + <product type="ebuild">FUSE</product> + <announced>November 22, 2005</announced> + <revised>November 22, 2005: 01</revised> + <bug>112902</bug> + <access>local</access> + <affected> + <package name="sys-fs/fuse" auto="yes" arch="*"> + <unaffected range="ge">2.4.1-r1</unaffected> + <vulnerable range="lt">2.4.1-r1</vulnerable> + </package> + </affected> + <background> + <p> + FUSE (Filesystem in Userspace) allows implementation of a fully + functional filesystem in a userspace program. The fusermount utility is + used to mount/unmount FUSE file systems. + </p> + </background> + <description> + <p> + Thomas Biege discovered that fusermount fails to securely handle + special characters specified in mount points. + </p> + </description> + <impact type="normal"> + <p> + A local attacker could corrupt the contents of the /etc/mtab file + by mounting over a maliciously-named directory using fusermount, + potentially allowing the attacker to set unauthorized mount options. + This is possible only if fusermount is installed setuid root, which is + the default in Gentoo. + </p> + </impact> + <workaround> + <p> + There is no known workaround at this time. + </p> + </workaround> + <resolution> + <p> + All FUSE users should upgrade to the latest version: + </p> + <code> + # emerge --sync + # emerge --ask --oneshot --verbose ">=sys-fs/fuse-2.4.1-r1"</code> + </resolution> + <references> + <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3531">CVE-2005-3531</uri> + </references> + <metadata tag="requester" timestamp="Sun, 20 Nov 2005 12:06:35 +0000"> + jaervosz + </metadata> + <metadata tag="submitter" timestamp="Mon, 21 Nov 2005 13:30:54 +0000"> + koon + </metadata> + <metadata tag="bugReady" timestamp="Tue, 22 Nov 2005 16:07:17 +0000"> + koon + </metadata> +</glsa> |