69 lines
2.2 KiB
XML
69 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="200406-18">
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<title>gzip: Insecure creation of temporary files</title>
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<synopsis>
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gzip contain a bug potentially allowing an attacker to execute arbitrary
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commands.
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</synopsis>
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<product type="ebuild">gzip</product>
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<announced>June 24, 2004</announced>
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<revised>May 22, 2006: 02</revised>
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<bug>54890</bug>
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<access>local</access>
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<affected>
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<package name="app-arch/gzip" auto="yes" arch="*">
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<unaffected range="ge">1.3.3-r4</unaffected>
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<vulnerable range="le">1.3.3-r3</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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gzip (GNU zip) is popular compression program. The included gzexe
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utility allows you to compress executables in place and have them
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automatically uncompress and execute when you run them.
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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 script gzexe included with gzip contains a bug in the code that
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handles tempfile creation. If the creation of a temp file fails when
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using gzexe fails instead of bailing out it executes the command given
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as argument.
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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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This could lead to priviege escalation by running commands under the
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rights of the user running the self extracting file.
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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. All users are encouraged to
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upgrade to the latest available version.
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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 gzip users should upgrade to the latest stable version:
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</p>
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<code>
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# emerge sync
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# emerge -pv ">=app-arch/gzip-1.3.3-r4"
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# emerge ">=app-arch/gzip-1.3.3-r4"</code>
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<p>
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Additionally, once the upgrade is complete, all self extracting files
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created with earlier versions gzexe should be recreated, since the
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vulnerability is actually embedded in those executables.
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</p>
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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=CVE-2004-0603">CVE-2004-0603</uri>
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</references>
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<metadata tag="submitter">
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jaervosz
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</metadata>
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</glsa>
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