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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200501-31] teTeX, pTeX, CSTeX: Multiple vulnerabilities


Vulnerability Assessment Details

[GLSA-200501-31] teTeX, pTeX, CSTeX: Multiple vulnerabilities

Vulnerability Assessment Summary
teTeX, pTeX, CSTeX: Multiple vulnerabilities

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200501-31
(teTeX, pTeX, CSTeX: Multiple vulnerabilities)


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 (CVE-2004-0888, CVE-2004-0889, CVE-2004-1125 and CVE-2005-0064).
Furthermore, Javier Fernandez-Sanguino Pena discovered that the
xdvizilla script does not handle temporary files correctly.

Impact

A possible hacker 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.

Workaround

There is no known workaround at this time.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0888
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0889
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1125
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0064


Solution:
All teTeX users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/tetex-2.0.2-r5"
All CSTeX users should also upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/cstetex-2.0.2-r1"
Finally, all pTeX users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/ptex-3.1.4-r2"


Network Security Threat Level: Medium


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

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