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Debian DSA-1716-1 : vnc4 - integer overflow

critical Nessus Plugin ID 35567

Synopsis

The remote Debian host is missing a security-related update.

Description

It was discovered that xvnc4viewer, a virtual network computing client software for X, is prone to an integer overflow via a malicious encoding value that could lead to arbitrary code execution.

Solution

Upgrade the vnc4 packages.

For the stable distribution (etch) this problem has been fixed in version 4.1.1+X4.3.0-21+etch1.

For the unstable (sid) distribution this problem has been fixed in version 4.1.1+X4.3.0-31.

For the testing (lenny) distribution this problem will be fixed soon.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=513531

https://www.debian.org/security/2009/dsa-1716

Plugin Details

Severity: Critical

ID: 35567

File Name: debian_DSA-1716.nasl

Version: 1.13

Type: local

Agent: unix

Published: 2/2/2009

Updated: 1/4/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:vnc4, cpe:/o:debian:debian_linux:4.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/31/2009

Reference Information

CVE: CVE-2008-4770

BID: 33263

CWE: 20

DSA: 1716