Vulnerability Assessment & Network Security Forums
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.
Vulnerability Assessment Details
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.
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
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.
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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