75 lines
2.4 KiB
XML
75 lines
2.4 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
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<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200410-19">
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<title>glibc: Insecure tempfile handling in catchsegv script</title>
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<synopsis>
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The catchsegv script in the glibc package is vulnerable to symlink attacks,
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potentially allowing a local user to overwrite arbitrary files with the
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rights of the user running the script.
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</synopsis>
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<product type="ebuild">glibc</product>
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<announced>October 21, 2004</announced>
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<revised>October 21, 2004: 01</revised>
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<bug>66358</bug>
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<access>local</access>
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<affected>
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<package name="sys-libs/glibc" auto="yes" arch="*">
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<unaffected range="rge">2.2.5-r9</unaffected>
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<unaffected range="rge">2.3.2-r12</unaffected>
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<unaffected range="rge">2.3.3.20040420-r2</unaffected>
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<unaffected range="rge">2.3.4.20040619-r2</unaffected>
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<unaffected range="ge">2.3.4.20040808-r1</unaffected>
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<vulnerable range="le">2.3.4.20040808</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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glibc is a package that contains the GNU C library.
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</p>
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</background>
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<description>
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<p>
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The catchsegv script creates temporary files in world-writeable directories
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with predictable names.
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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 create symbolic links in the temporary files
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directory, pointing to a valid file somewhere on the filesystem. When
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catchsegv script is called, this would result in the file being overwritten
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with the rights of the user running the utility, which could be the root
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user.
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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 glibc 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 -pv sys-libs/glibc
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# emerge sys-libs/glibc</code>
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</resolution>
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<references>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0968">CAN-2004-0968</uri>
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</references>
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<metadata tag="requester" timestamp="Wed, 20 Oct 2004 14:29:16 +0000">
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koon
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</metadata>
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<metadata tag="bugReady" timestamp="Wed, 20 Oct 2004 14:29:39 +0000">
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koon
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</metadata>
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<metadata tag="submitter" timestamp="Wed, 20 Oct 2004 16:11:58 +0000">
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lewk
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</metadata>
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</glsa>
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