GLSA-200806-04 : rdesktop: Multiple vulnerabilities

high Nessus Plugin ID 33189

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.

Solution

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

See Also

https://security.gentoo.org/glsa/200806-04

Plugin Details

Severity: High

ID: 33189

File Name: gentoo_GLSA-200806-04.nasl

Version: 1.16

Type: local

Published: 6/16/2008

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:rdesktop, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 6/14/2008

Reference Information

CVE: CVE-2008-1801, CVE-2008-1802, CVE-2008-1803

CWE: 119, 189

GLSA: 200806-04