CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	0.00

A vulnerability was found in LibVNCServer up to 0.9.9. It has been declared as problematic. Affected by this vulnerability is the function rfbProcessClientNormalMessage. The manipulation with an unknown input leads to a data processing vulnerability. The CWE definition for the vulnerability is CWE-19. As an impact it is known to affect availability. The summary by CVE is:

The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier does not properly handle attempts to send a large amount of ClientCutText data, which allows remote attackers to cause a denial of service (memory consumption or daemon crash) via a crafted message that is processed by using a single unchecked malloc.

The weakness was released 12/15/2014 by Nicolas Ruff as confirmed advisory (CERT.org). It is possible to read the advisory at ocert.org. This vulnerability is known as CVE-2014-6053 since 09/01/2014. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 79203 (RHEL 7 : kdenetwork (RHSA-2014:1827)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168339 (SUSE Enterprise Linux Security update for LibVNCServer (SUSE-SU-2015:2088-2)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (96190), Tenable (79203), SecurityFocus (BID 70092†), Secunia (SA61506†) and Vulnerability Center (SBV-47118†).

Productinfo

Name

• LibVNCServer

Version

• 0.9.0
• 0.9.1
• 0.9.2
• 0.9.3
• 0.9.4
• 0.9.5
• 0.9.6
• 0.9.7
• 0.9.8
• 0.9.9

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Data processing
CWE: CWE-19
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 79203
Nessus Name: RHEL 7 : kdenetwork (RHSA-2014:1827)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 703081
OpenVAS Name: Debian Security Advisory DSA 3081-1 (libvncserver - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

09/01/2014 🔍
09/23/2014 +22 days 🔍
09/24/2014 +1 days 🔍
10/01/2014 +7 days 🔍
11/12/2014 +42 days 🔍
11/18/2014 +6 days 🔍
12/15/2014 +27 days 🔍
12/15/2014 +0 days 🔍
03/27/2015 +102 days 🔍
04/07/2022 +2568 days 🔍

Sourcesinfo

Advisory: RHSA-2014:1827
Researcher: Nicolas Ruff
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-6053 (🔍)
OVAL: 🔍

X-Force: 96190
SecurityFocus: 70092 - LibVNCServer CVE-2014-6053 Remote Denial of Service Vulnerability
Secunia: 61506 - LibVNCServer Multiple Vulnerabilities, Moderately Critical
Vulnerability Center: 47118 - LibVNCServer 0.9.9 Remote DoS Vulnerability via a ClientCutText Message, Medium

Entryinfo

Created: 03/27/2015 14:56
Updated: 04/07/2022 20:44
Changes: 03/27/2015 14:56 (70), 06/12/2017 08:23 (7), 04/07/2022 20:29 (4), 04/07/2022 20:37 (1), 04/07/2022 20:44 (2)
Complete: 🔍
Cache ID: 3:D96:103

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