GLSA-200903-17 : Real VNC: User-assisted execution of arbitrary code

critical Nessus Plugin ID 35815

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-200903-17 (Real VNC: User-assisted execution of arbitrary code)

An unspecified vulnerability has been discovered int the CMsgReader::readRect() function in the VNC Viewer component, related to the encoding type of RFB protocol data.
Impact :

A remote attacker could entice a user to connect to a malicious VNC server, or leverage Man-in-the-Middle attacks, to cause the execution of arbitrary code with the privileges of the user running the VNC viewer.
Workaround :

There is no known workaround at this time.

Solution

All Real VNC users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-misc/vnc-4.1.3'

Plugin Details

Severity: Critical

ID: 35815

File Name: gentoo_GLSA-200903-17.nasl

Version: 1.15

Type: local

Family: Gentoo Local Security Checks

Published: 3/10/2009

Updated: 1/6/2021

Supported Sensors: 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:gentoo:linux:vnc, cpe:/o:gentoo:linux

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/9/2009

Reference Information

CVE: CVE-2008-4770

BID: 33263

CWE: 20

GLSA: 200903-17

Detections

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