GLSA-200806-04 : rdesktop: 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-200806-04
(rdesktop: Multiple vulnerabilities)

An anonymous researcher reported multiple vulnerabilities in rdesktop
via iDefense Labs:
An integer underflow error exists in
the function iso_recv_msg() in the file iso.c which can be triggered
via a specially crafted RDP request, causing a heap-based buffer
overflow (CVE-2008-1801).
An input validation error exists in
the function process_redirect_pdu() in the file rdp.c which can be
triggered via a specially crafted RDP redirect request, causing a
BSS-based buffer overflow (CVE-2008-1802).
An integer signedness error exists in the function xrealloc() in the
file rdesktop.c which can be be exploited to cause a heap-based buffer
overflow (CVE-2008-1803).

Impact :

An attacker could exploit these vulnerabilities by enticing a user to
connect to a malicious RDP server thereby allowing the attacker to
execute arbitrary code or cause a Denial of Service.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200806-04.xml

Solution :

All rdesktop users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-misc/rdesktop-1.6.0'

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 33189 (gentoo_GLSA-200806-04.nasl)

Bugtraq ID:

CVE ID: CVE-2008-1801
CVE-2008-1802
CVE-2008-1803