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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200411-29] unarj: Long filenames buffer overflow and a path traversal vulnerability

Vulnerability Assessment Details

[GLSA-200411-29] unarj: Long filenames buffer overflow and a path traversal vulnerability

Vulnerability Assessment Summary
unarj: Long filenames buffer overflow and a path traversal vulnerability

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200411-29
(unarj: Long filenames buffer overflow and a path traversal vulnerability)

unarj has a bounds checking vulnerability within the handling of
long filenames in archives. It also fails to properly sanitize paths
when extracting an archive (if the "x" option is used to preserve
paths).

Impact

A possible hacker could trigger a buffer overflow or a path traversal by
enticing a user to open an archive containing specially-crafted path
names, potentially resulting in the overwrite of files or execution of
arbitrary code with the permissions of the user running unarj.

Workaround

There is no known workaround at this time.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0947
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1027

Solution:
All unarj users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/unarj-2.63a-r2"

Network Security Threat Level: Medium

Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

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