X.org X11 Server R7.7 denial of service

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.
6.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in X.org X11 Server R7.7. Affected by this issue is some unknown functionality. The manipulation leads to denial of service. This vulnerability is handled as CVE-2013-1056. There is no exploit available. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Detailsinfo

A vulnerability classified as critical was found in X.org X11 Server R7.7 (Windowing System Software). Affected by this vulnerability is an unknown code block. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

X.org X server 1.13.3 and earlier, when not run as root, allows local users to cause a denial of service (crash) or possibly gain privileges via vectors involving cached xkb files.

The weakness was published 10/17/2013 by Pedro Ribeiro as 63203 as not defined bug report (Bugtraq). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2013-1056 since 01/11/2013. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 74028 (GLSA-201405-07 : X.Org X Server: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195941 (Ubuntu Security Notification for Xorg-server, Xorg-server-lts-quantal, Xorg-server-lts-raring Vulnerabilities (USN-1990-1)).

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 (88138), Tenable (74028), SecurityFocus (BID 63203†), OSVDB (98683†) and Secunia (SA55374†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.2
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 74028
Nessus Name: GLSA-201405-07 : X.Org X Server: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 841593
OpenVAS Name: Ubuntu Update for xorg-server USN-1990-1
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: 🔍

Timelineinfo

01/11/2013 🔍
10/17/2013 +279 days 🔍
10/17/2013 +0 days 🔍
10/17/2013 +0 days 🔍
10/21/2013 +4 days 🔍
10/28/2013 +7 days 🔍
11/14/2013 +17 days 🔍
05/16/2014 +183 days 🔍
05/31/2021 +2572 days 🔍

Sourcesinfo

Vendor: x.org

Advisory: 63203
Researcher: Pedro Ribeiro
Status: Not defined

CVE: CVE-2013-1056 (🔍)
GCVE (CVE): GCVE-0-2013-1056
GCVE (VulDB): GCVE-100-10855

OVAL: 🔍

X-Force: 88138
SecurityFocus: 63203
Secunia: 55374 - Ubuntu update for xorg-server, Less Critical
OSVDB: 98683
Vulnerability Center: 42313 - X.org X server 1.13.3 and Earlier Local DoS Vulnerability in Xephyr via Cached XKB Files, Low

Entryinfo

Created: 10/21/2013 10:31 AM
Updated: 05/31/2021 02:24 PM
Changes: 10/21/2013 10:31 AM (43), 05/15/2017 11:33 AM (35), 05/31/2021 02:24 PM (3)
Complete: 🔍
Committer: olku
Cache ID: 18:9A5:40

Discussion

No comments yet. Languages: en.

Please log in to comment.

Do you want to use VulDB in your project?

Use the official API to access entries easily!