69 lines
2.2 KiB
XML
69 lines
2.2 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="200412-04">
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<title>Perl: Insecure temporary file creation</title>
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<synopsis>
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Perl is vulnerable to symlink attacks, potentially allowing a local user to
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overwrite arbitrary files.
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</synopsis>
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<product type="ebuild">perl</product>
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<announced>December 07, 2004</announced>
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<revised>December 07, 2004: 01</revised>
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<bug>66360</bug>
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<access>local</access>
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<affected>
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<package name="dev-lang/perl" auto="yes" arch="*">
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<unaffected range="rge">5.8.5-r2</unaffected>
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<unaffected range="ge">5.8.6-r1</unaffected>
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<vulnerable range="lt">5.8.5-r2</vulnerable>
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<vulnerable range="eq">5.8.6</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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Perl is a stable, cross-platform programming language created by
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Larry Wall.
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</p>
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</background>
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<description>
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<p>
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Some Perl modules create temporary files in world-writable
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directories 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
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files directory, pointing to a valid file somewhere on the filesystem.
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When a Perl script is executed, this would result in the file being
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overwritten with the rights of the user running the utility, which
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could be the root 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 Perl 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 ">=perl-5.8.5-r2"</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-2004-0976">CAN-2004-0976</uri>
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<uri link="http://www.trustix.org/errata/2004/0050/">Trustix Advisory #2004-0050</uri>
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</references>
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<metadata tag="submitter" timestamp="Sun, 5 Dec 2004 01:07:23 +0000">
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lewk
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</metadata>
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<metadata tag="bugReady" timestamp="Mon, 6 Dec 2004 21:18:17 +0000">
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lewk
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</metadata>
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</glsa>
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