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

This script is Copyright (C) 2004-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

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 :

An attacker 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.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200411-29.xml

Solution :

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

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 15777 (gentoo_GLSA-200411-29.nasl)

Bugtraq ID:

CVE ID: CVE-2004-0947
CVE-2004-1027