GLSA-200512-06 : Ethereal: Buffer overflow in OSPF protocol dissector

This script is Copyright (C) 2005-2014 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-200512-06
(Ethereal: Buffer overflow in OSPF protocol dissector)

iDEFENSE reported a possible overflow due to the lack of bounds
checking in the dissect_ospf_v3_address_prefix() function, part of the
OSPF protocol dissector.

Impact :

An attacker might be able to craft a malicious network flow that
would crash Ethereal. It may be possible, though unlikely, to exploit
this flaw to execute arbitrary code with the permissions of the user
running Ethereal, which could be the root user.

Workaround :

There is no known workaround at this time.

See also :

http://www.nessus.org/u?66833b5e
http://www.gentoo.org/security/en/glsa/glsa-200512-06.xml

Solution :

All Ethereal users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-analyzer/ethereal-0.10.13-r2'

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 20315 (gentoo_GLSA-200512-06.nasl)

Bugtraq ID:

CVE ID: CVE-2005-3651