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Gentoo Linux Security Advisory GLSA 200603-02 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: teTeX, pTeX, CSTeX: Multiple overflows in included XPdf |
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code |
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Date: March 04, 2006 |
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Bugs: #115775 |
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ID: 200603-02 |
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Synopsis |
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======== |
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|
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CSTeTeX, pTeX, and teTeX include vulnerable XPdf code to handle PDF |
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files, making them vulnerable to the execution of arbitrary code. |
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|
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Background |
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========== |
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|
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teTex is a complete TeX distribution. It is used for creating and |
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manipulating LaTeX documents. CSTeX is a TeX distribution with Czech |
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and Slovak support. pTeX is and ASCII publishing TeX distribution. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 app-text/tetex < 2.0.2-r8 >= 2.0.2-r8 |
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2 app-text/cstetex < 2.0.2-r2 >= 2.0.2-r2 |
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3 app-text/ptex < 3.1.5-r1 >= 3.1.5-r1 |
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------------------------------------------------------------------- |
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3 affected packages on all of their supported architectures. |
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------------------------------------------------------------------- |
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|
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Description |
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=========== |
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|
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CSTeX, teTex, and pTeX include XPdf code to handle PDF files. This XPdf |
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code is vulnerable to several heap overflows (GLSA 200512-08) as well |
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as several buffer and integer overflows discovered by Chris Evans |
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(CESA-2005-003). |
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|
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Impact |
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====== |
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|
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An attacker could entice a user to open a specially crafted PDF file |
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with teTeX, pTeX or CSTeX, potentially resulting in the execution of |
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arbitrary code with the rights of the user running the affected |
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application. |
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|
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Workaround |
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========== |
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|
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There is no known workaround at this time. |
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|
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Resolution |
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========== |
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All teTex users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-text/tetex-2.0.2-r8" |
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|
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All CSTeX users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-text/cstetex-2.0.2-r2" |
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|
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All pTeX users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-text/ptex-3.1.5-r1" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2005-3193 |
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http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-3193 |
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[ 2 ] GLSA 200512-08 |
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http://www.gentoo.org/security/en/glsa/glsa-200512-08.xml |
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[ 3 ] CESA-2005-003 |
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http://scary.beasts.org/security/CESA-2005-003.txt |
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|
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200603-02.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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|
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License |
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======= |
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Copyright 2006 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/2.0 |
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