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Vulnerability Assessment & Network Security Forums |
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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-200607-06] libpng: Buffer overflow Vulnerability Assessment Details
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[GLSA-200607-06] libpng: Buffer overflow |
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libpng: Buffer overflow Detailed Explanation for this Vulnerability Assessment The remote host is affected by the vulnerability described in GLSA-200607-06 (libpng: Buffer overflow) In pngrutil.c, the function png_decompress_chunk() allocates insufficient space for an error message, potentially overwriting stack data, leading to a buffer overflow. Impact By enticing a user to load a maliciously crafted PNG image, a possible hacker could execute arbitrary code with the rights of the user, or crash the application using the libpng library, such as the emul-linux-x86-baselibs. Workaround There is no known workaround at this time. References: http://heanet.dl.sourceforge.net/sourceforge/libpng/libpng-1.2.12-README.txt http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3334 Solution: All libpng users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=media-libs/libpng-1.2.12" All AMD64 emul-linux-x86-baselibs users should also upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-emulation/emul-linux-x86-baselibs-2.5.1" Network Security Threat Level: Medium Networks Security ID: Vulnerability Assessment Copyright: (C) 2006 Michel Arboi |
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