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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200711-26">
<title>teTeX: Multiple vulnerabilities</title>
<synopsis>
Multiple vulnerabilities have been discovered in teTeX, possibly allowing
to execute arbitrary code or overwrite arbitrary files.
</synopsis>
<product type="ebuild">tetex</product>
<announced>2007-11-18</announced>
<revised>2007-11-18: 01</revised>
<bug>198238</bug>
<access>remote</access>
<affected>
<package name="app-text/tetex" auto="yes" arch="*">
<unaffected range="ge">3.0_p1-r6</unaffected>
<vulnerable range="lt">3.0_p1-r6</vulnerable>
</package>
</affected>
<background>
<p>
teTeX is a complete TeX distribution for editing documents.
</p>
</background>
<description>
<p>
Joachim Schrod discovered several buffer overflow vulnerabilities and
an insecure temporary file creation in the "dvilj" application that is
used by dvips to convert DVI files to printer formats (CVE-2007-5937,
CVE-2007-5936). Bastien Roucaries reported that the "dvips" application
is vulnerable to two stack-based buffer overflows when processing DVI
documents with long \href{} URIs (CVE-2007-5935). teTeX also includes
code from Xpdf that is vulnerable to a memory corruption and two
heap-based buffer overflows (GLSA 200711-22); and it contains code from
T1Lib that is vulnerable to a buffer overflow when processing an overly
long font filename (GLSA 200710-12).
</p>
</description>
<impact type="normal">
<p>
A remote attacker could entice a user to process a specially crafted
DVI or PDF file which could lead to the execution of arbitrary code
with the privileges of the user running the application. A local
attacker could exploit the "dvilj" vulnerability to conduct a symlink
attack to overwrite arbitrary files.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All teTeX users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/tetex-3.0_p1-r6"</code>
</resolution>
<references>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5935">CVE-2007-5935</uri>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5936">CVE-2007-5936</uri>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5937">CVE-2007-5937</uri>
<uri link="https://www.gentoo.org/security/en/glsa/glsa-200710-12.xml">GLSA 200710-12</uri>
<uri link="https://www.gentoo.org/security/en/glsa/glsa-200711-22.xml">GLSA 200711-22</uri>
</references>
<metadata tag="submitter" timestamp="2007-11-13T01:13:42Z">
rbu
</metadata>
<metadata tag="bugReady" timestamp="2007-11-18T21:46:32Z">
rbu
</metadata>
</glsa>
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