68 lines
2.2 KiB
XML
68 lines
2.2 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200511-17">
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<title>FUSE: mtab corruption through fusermount</title>
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<synopsis>
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The fusermount utility from FUSE can be abused to corrupt the /etc/mtab
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file contents, potentially allowing a local attacker to set unauthorized
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mount options.
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</synopsis>
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<product type="ebuild">FUSE</product>
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<announced>2005-11-22</announced>
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<revised count="01">2005-11-22</revised>
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<bug>112902</bug>
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<access>local</access>
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<affected>
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<package name="sys-fs/fuse" auto="yes" arch="*">
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<unaffected range="ge">2.4.1-r1</unaffected>
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<vulnerable range="lt">2.4.1-r1</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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FUSE (Filesystem in Userspace) allows implementation of a fully
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functional filesystem in a userspace program. The fusermount utility is
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used to mount/unmount FUSE file systems.
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</p>
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</background>
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<description>
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<p>
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Thomas Biege discovered that fusermount fails to securely handle
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special characters specified in mount points.
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</p>
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</description>
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<impact type="normal">
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<p>
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A local attacker could corrupt the contents of the /etc/mtab file
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by mounting over a maliciously-named directory using fusermount,
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potentially allowing the attacker to set unauthorized mount options.
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This is possible only if fusermount is installed setuid root, which is
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the default in Gentoo.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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</p>
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</workaround>
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<resolution>
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<p>
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All FUSE users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=sys-fs/fuse-2.4.1-r1"</code>
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</resolution>
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<references>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3531">CVE-2005-3531</uri>
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</references>
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<metadata tag="requester" timestamp="2005-11-20T12:06:35Z">
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jaervosz
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</metadata>
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<metadata tag="submitter" timestamp="2005-11-21T13:30:54Z">
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koon
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</metadata>
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<metadata tag="bugReady" timestamp="2005-11-22T16:07:17Z">
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koon
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</metadata>
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</glsa>
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