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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200711-26">
<title>teTeX: Multiple vulnerabilities</title>
Multiple vulnerabilities have been discovered in teTeX, possibly allowing
to execute arbitrary code or overwrite arbitrary files.
<product type="ebuild">tetex</product>
<announced>November 18, 2007</announced>
<revised>November 18, 2007: 01</revised>
<package name="app-text/tetex" auto="yes" arch="*">
<unaffected range="ge">3.0_p1-r6</unaffected>
<vulnerable range="lt">3.0_p1-r6</vulnerable>
teTeX is a complete TeX distribution for editing documents.
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).
<impact type="normal">
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.
There is no known workaround at this time.
All teTeX users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=app-text/tetex-3.0_p1-r6&quot;</code>
<uri link="">CVE-2007-5935</uri>
<uri link="">CVE-2007-5936</uri>
<uri link="">CVE-2007-5937</uri>
<uri link="/security/en/glsa/glsa-200710-12.xml">GLSA 200710-12</uri>
<uri link="/security/en/glsa/glsa-200711-22.xml">GLSA 200711-22</uri>
<metadata tag="submitter" timestamp="Tue, 13 Nov 2007 01:13:42 +0000">
<metadata tag="bugReady" timestamp="Sun, 18 Nov 2007 21:46:32 +0000">