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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery. Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200511-23] chmlib, KchmViewer: Stack-based buffer overflow Vulnerability Assessment Details
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[GLSA-200511-23] chmlib, KchmViewer: Stack-based buffer overflow |
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chmlib, KchmViewer: Stack-based buffer overflow Detailed Explanation for this Vulnerability Assessment The remote host is affected by the vulnerability described in GLSA-200511-23 (chmlib, KchmViewer: Stack-based buffer overflow) Sven Tantau reported about a buffer overflow vulnerability in chmlib. The function "_chm_decompress_block()" does not properly perform boundary checking, resulting in a stack-based buffer overflow. Impact By convincing a user to open a specially crafted ITSS or CHM file, using KchmViewer or a program makes use of chmlib, a remote attacker could execute arbitrary code with the rights of the user running the software. Workaround There is no known workaround at this time. References: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3318 Solution: All chmlib users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-doc/chmlib-0.37.4" All KchmViewer users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-doc/kchmviewer-1.1" Network Security Threat Level: Medium Networks Security ID: Vulnerability Assessment Copyright: (C) 2005 Michel Arboi |
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