CVE-2008-4770

vnc: vncviewer insufficient encoding value validation in CMsgReader::readRect

Severity Score

10.0

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The CMsgReader::readRect function in the VNC Viewer component in RealVNC VNC Free Edition 4.0 through 4.1.2, Enterprise Edition E4.0 through E4.4.2, and Personal Edition P4.0 through P4.4.2 allows remote VNC servers to execute arbitrary code via crafted RFB protocol data, related to "encoding type."

La función CMsgReader::readRect en el componente VNC Viewer en RealVNC VNC Free Edition v4.0 hasta v4.1.2, Enterprise Edition vE4.0 hasta vE4.4.2, y Personal Edition vP4.0 hasta vP4.4.2 permite a servidores remotos VNC ejecutar código de su elección mediante el protocolo de datos RFB manipulado, relacionado con "tipo codificado".

*Credits: N/A

CVSS Scores

NISTv2 10.0

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2008-10-28 CVE Reserved
2009-01-16 CVE Published
2023-03-08 EPSS Updated
2024-08-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (19)

URL	Tag	Source
http://secunia.com/advisories/32317	Third Party Advisory
http://secunia.com/advisories/33689	Third Party Advisory
http://secunia.com/advisories/34184	Third Party Advisory
http://www.realvnc.com/pipermail/vnc-list/2008-November/059432.html	Mailing List
http://www.realvnc.com/products/free/4.1/release-notes.html	X_refsource_confirm
http://www.securityfocus.com/bid/31832	Vdb Entry
http://www.securityfocus.com/bid/33263	Vdb Entry
http://www.vupen.com/english/advisories/2008/2868	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/45969	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/47937	Vdb Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9367	Signature

URL	Date	SRC

URL	Date	SRC
http://sunsolve.sun.com/search/document.do?assetkey=1-21-140455-01-1	2017-09-29

URL	Date	SRC
http://sunsolve.sun.com/search/document.do?assetkey=1-26-248526-1	2017-09-29
http://www.gentoo.org/security/en/glsa/glsa-200903-17.xml	2017-09-29
http://www.realvnc.com/products/upgrade.html	2017-09-29
http://www.redhat.com/support/errata/RHSA-2009-0261.html	2017-09-29
https://www.redhat.com/archives/fedora-package-announce/2009-January/msg01025.html	2017-09-29
https://access.redhat.com/security/cve/CVE-2008-4770	2009-02-11
https://bugzilla.redhat.com/show_bug.cgi?id=480590	2009-02-11

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Realvnc Search vendor "Realvnc"		Realvnc Search vendor "Realvnc" for product "Realvnc"				4.0 Search vendor "Realvnc" for product "Realvnc" and version "4.0"		free		Affected
Realvnc Search vendor "Realvnc"		Realvnc Search vendor "Realvnc" for product "Realvnc"				4.1.2 Search vendor "Realvnc" for product "Realvnc" and version "4.1.2"		free		Affected
Realvnc Search vendor "Realvnc"		Realvnc Search vendor "Realvnc" for product "Realvnc"				4.4.2 Search vendor "Realvnc" for product "Realvnc" and version "4.4.2"		enterprise		Affected
Realvnc Search vendor "Realvnc"		Realvnc Search vendor "Realvnc" for product "Realvnc"				e4.0 Search vendor "Realvnc" for product "Realvnc" and version "e4.0"		enterprise		Affected
Realvnc Search vendor "Realvnc"		Realvnc Search vendor "Realvnc" for product "Realvnc"				p4.0 Search vendor "Realvnc" for product "Realvnc" and version "p4.0"		personal		Affected
Realvnc Search vendor "Realvnc"		Realvnc Search vendor "Realvnc" for product "Realvnc"				p4.4.2 Search vendor "Realvnc" for product "Realvnc" and version "p4.4.2"		personal		Affected