GLSA-200802-02 : Doomsday: Multiple vulnerabilities

This script is Copyright (C) 2008-2014 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-200802-02
(Doomsday: Multiple vulnerabilities)

Luigi Auriemma discovered multiple buffer overflows in the
D_NetPlayerEvent() function, the Msg_Write() function and the
NetSv_ReadCommands() function. He also discovered errors when handling
chat messages that are not NULL-terminated (CVE-2007-4642) or contain a
short data length, triggering an integer underflow (CVE-2007-4643).
Furthermore a format string vulnerability was discovered in the
Cl_GetPackets() function when processing PSV_CONSOLE_TEXT messages
(CVE-2007-4644).

Impact :

A remote attacker could exploit these vulnerabilities to execute
arbitrary code with the rights of the user running the Doomsday server
or cause a Denial of Service by sending specially crafted messages to
the server.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200802-02.xml

Solution :

While some of these issues could be resolved in
'games-fps/doomsday-1.9.0-beta5.2', the format string vulnerability
(CVE-2007-4644) remains unfixed. We recommend that users unmerge
Doomsday:
# emerge --unmerge games-fps/doomsday

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: 30244 (gentoo_GLSA-200802-02.nasl)

Bugtraq ID:

CVE ID: CVE-2007-4642
CVE-2007-4643
CVE-2007-4644