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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200501-38">
<title>Perl: rmtree and DBI tmpfile vulnerabilities</title>
<synopsis>
The Perl DBI library and File::Path::rmtree function are vulnerable to
symlink attacks.
</synopsis>
<product type="ebuild">Perl</product>
<announced>2005-01-26</announced>
<revised count="03">2005-03-15</revised>
<bug>75696</bug>
<bug>78634</bug>
<bug>79685</bug>
<access>local</access>
<affected>
<package name="dev-perl/DBI" auto="yes" arch="*">
<unaffected range="rge">1.37-r1</unaffected>
<unaffected range="ge">1.38-r1</unaffected>
<vulnerable range="le">1.38</vulnerable>
</package>
<package name="dev-lang/perl" auto="yes" arch="*">
<unaffected range="ge">5.8.6-r4</unaffected>
<unaffected range="rge">5.8.5-r5</unaffected>
<unaffected range="rge">5.8.4-r4</unaffected>
<unaffected range="rge">5.8.2-r4</unaffected>
<vulnerable range="le">5.8.6-r3</vulnerable>
</package>
</affected>
<background>
<p>
Perl is a cross platform programming language. The DBI is the standard
database interface module for Perl.
</p>
</background>
<description>
<p>
Javier Fernandez-Sanguino Pena discovered that the DBI library creates
temporary files in an insecure, predictable way (CAN-2005-0077). Paul
Szabo found out that "File::Path::rmtree" is vulnerable to various race
conditions (CAN-2004-0452, CAN-2005-0448).
</p>
</description>
<impact type="normal">
<p>
A local attacker could create symbolic links in the temporary files
directory that point to a valid file somewhere on the filesystem. When
the DBI library or File::Path::rmtree is executed, this could be used
to overwrite or remove files with the rights of the user calling these
functions.
</p>
</impact>
<workaround>
<p>
There are no known workarounds at this time.
</p>
</workaround>
<resolution>
<p>
All Perl users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose dev-lang/perl</code>
<p>
All DBI library users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose dev-perl/DBI</code>
</resolution>
<references>
<uri link="https://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0452">CAN-2004-0452</uri>
<uri link="https://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0077">CAN-2005-0077</uri>
<uri link="https://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0448">CAN-2005-0448</uri>
</references>
<metadata tag="submitter" timestamp="2005-01-26T15:06:53Z">
DerCorny
</metadata>
<metadata tag="bugReady" timestamp="2005-01-26T20:14:36Z">
koon
</metadata>
</glsa>
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