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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-200407-11] wv: Buffer overflow vulnerability Vulnerability Assessment Details
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[GLSA-200407-11] wv: Buffer overflow vulnerability |
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wv: Buffer overflow vulnerability Detailed Explanation for this Vulnerability Assessment The remote host is affected by the vulnerability described in GLSA-200407-11 (wv: Buffer overflow vulnerability) A use of strcat without proper bounds checking leads to an exploitable buffer overflow. The vulnerable code is executed when wv encounters an unrecognized token, so a specially crafted file, loaded in wv, can trigger the vulnerable code and execute it's own arbitrary code. This exploit is only possible when the user loads the document into HTML view mode. Impact By inducing a user into running wv on a special file, a possible hacker can execute arbitrary code with the permissions of the user running the vulnerable program. Workaround Users should not view untrusted documents with wvHtml or applications using wv. When loading an untrusted document in an application using the wv library, make sure HTML view is disabled. References: http://www.idefense.com/application/poi/display?id=115&type=vulnerabilities&flashstatus=true Solution: All users should upgrade to the latest available version. # emerge sync # emerge -pv ">=app-text/wv-1.0.0-r1" # emerge ">=app-text/wv-1.0.0-r1" Network Security Threat Level: Medium Networks Security ID: Vulnerability Assessment Copyright: (C) 2005 Michel Arboi |
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