Ubuntu 6.06 LTS / 7.04 / 7.10 / 8.04 LTS : rdesktop vulnerabilities (USN-646-1)

high Nessus Plugin ID 38000

Synopsis

The remote Ubuntu host is missing a security-related patch.

Description

It was discovered that rdesktop did not properly validate the length of packet headers when processing RDP requests. If a user were tricked into connecting to a malicious server, an attacker could cause a denial of service or possible execute arbitrary code with the privileges of the user. (CVE-2008-1801)

Multiple buffer overflows were discovered in rdesktop when processing RDP redirect requests. If a user were tricked into connecting to a malicious server, an attacker could cause a denial of service or possible execute arbitrary code with the privileges of the user.
(CVE-2008-1802)

It was discovered that rdesktop performed a signed integer comparison when reallocating dynamic buffers which could result in a heap-based overflow. If a user were tricked into connecting to a malicious server, an attacker could cause a denial of service or possible execute arbitrary code with the privileges of the user.
(CVE-2008-1802).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected rdesktop package.

See Also

https://usn.ubuntu.com/646-1/

Plugin Details

Severity: High

ID: 38000

File Name: ubuntu_USN-646-1.nasl

Version: 1.14

Type: local

Agent: unix

Published: 4/23/2009

Updated: 1/19/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, 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:canonical:ubuntu_linux:rdesktop, cpe:/o:canonical:ubuntu_linux:6.06:-:lts, cpe:/o:canonical:ubuntu_linux:7.04, cpe:/o:canonical:ubuntu_linux:7.10, cpe:/o:canonical:ubuntu_linux:8.04:-:lts

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Patch Publication Date: 9/18/2008

Reference Information

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

CWE: 119, 189

USN: 646-1