| <?xml version="1.0" encoding="utf-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200501-31"> |
| <title>teTeX, pTeX, CSTeX: Multiple vulnerabilities</title> |
| <synopsis> |
| teTeX, pTeX and CSTeX make use of vulnerable Xpdf code which may allow the |
| remote execution of arbitrary code. Furthermore, the xdvizilla script is |
| vulnerable to temporary file handling issues. |
| </synopsis> |
| <product type="ebuild">teTeX</product> |
| <announced>January 23, 2005</announced> |
| <revised>January 23, 2005: 01</revised> |
| <bug>75801</bug> |
| <access>remote and local</access> |
| <affected> |
| <package name="app-text/tetex" auto="yes" arch="*"> |
| <unaffected range="ge">2.0.2-r5</unaffected> |
| <vulnerable range="lt">2.0.2-r5</vulnerable> |
| </package> |
| <package name="app-text/cstetex" auto="yes" arch="*"> |
| <unaffected range="ge">2.0.2-r1</unaffected> |
| <vulnerable range="lt">2.0.2-r1</vulnerable> |
| </package> |
| <package name="app-text/ptex" auto="yes" arch="*"> |
| <unaffected range="ge">3.1.4-r2</unaffected> |
| <vulnerable range="lt">3.1.4-r2</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| teTeX is a complete and open source TeX distribution. CSTeX is |
| another TeX distribution including Czech and Slovak support. pTeX is |
| another alternative that allows Japanese publishing with TeX. xdvizilla |
| is an auxiliary script used to integrate DVI file viewing in |
| Mozilla-based browsers. |
| </p> |
| </background> |
| <description> |
| <p> |
| teTeX, pTeX and CSTeX all make use of Xpdf code and may therefore |
| be vulnerable to the various overflows that were discovered in Xpdf |
| code (CAN-2004-0888, CAN-2004-0889, CAN-2004-1125 and CAN-2005-0064). |
| Furthermore, Javier Fernandez-Sanguino Pena discovered that the |
| xdvizilla script does not handle temporary files correctly. |
| </p> |
| </description> |
| <impact type="normal"> |
| <p> |
| An attacker could design a malicious input file which, when |
| processed using one of the TeX distributions, could lead to the |
| execution of arbitrary code. Furthermore, a local attacker could create |
| symbolic links in the temporary files directory, pointing to a valid |
| file somewhere on the filesystem. When xdvizilla is called, this would |
| result in the file being overwritten with the rights of the user |
| running the script. |
| </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-2.0.2-r5"</code> |
| <p> |
| All CSTeX users should also upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=app-text/cstetex-2.0.2-r1"</code> |
| <p> |
| Finally, all pTeX users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=app-text/ptex-3.1.4-r2"</code> |
| </resolution> |
| <references> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0888">CAN-2004-0888</uri> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0889">CAN-2004-0889</uri> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1125">CAN-2004-1125</uri> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0064">CAN-2005-0064</uri> |
| </references> |
| <metadata tag="requester" timestamp="Fri, 21 Jan 2005 10:36:38 +0000"> |
| koon |
| </metadata> |
| <metadata tag="submitter" timestamp="Fri, 21 Jan 2005 22:41:12 +0000"> |
| koon |
| </metadata> |
| <metadata tag="bugReady" timestamp="Sun, 23 Jan 2005 12:09:17 +0000"> |
| koon |
| </metadata> |
| </glsa> |