Open Group X11r6 3.3.3/3.3.4/3.3.5/3.3.6/4.0 Resource Mask libX11 infinite loop

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Open Group X11r6 3.3.3/3.3.4/3.3.5/3.3.6/4.0 and classified as problematic. This impacts an unknown function in the library libX11 of the component Resource Mask Handler. The manipulation with the input 0 results in infinite loop. This vulnerability is cataloged as CVE-2000-0620. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Open Group X11r6 3.3.3/3.3.4/3.3.5/3.3.6/4.0. It has been classified as problematic. Affected is an unknown code in the library libX11 of the component Resource Mask Handler. The manipulation with the input value 0 leads to a infinite loop vulnerability. CWE is classifying the issue as CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. This is going to have an impact on availability. CVE summarizes:

libX11 X library allows remote attackers to cause a denial of service via a resource mask of 0, which causes libX11 to go into an infinite loop.

The weakness was shared 06/19/2000 by Chris Evans as not defined posting (Bugtraq). The advisory is shared for download at marc.theaimsgroup.com. This vulnerability is traded as CVE-2000-0620. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (4996) and SecurityFocus (BID 1409†). The entry VDB-15680 is related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Infinite loop
CWE: CWE-835 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/19/2000 🔍
06/19/2000 +0 days 🔍
06/19/2000 +0 days 🔍
06/25/2014 +5119 days 🔍
06/08/2017 +1079 days 🔍

Sourcesinfo

Advisory: marc.theaimsgroup.com
Researcher: Chris Evans
Status: Not defined

CVE: CVE-2000-0620 (🔍)
GCVE (CVE): GCVE-0-2000-0620
GCVE (VulDB): GCVE-100-15684
X-Force: 4996 - libX11 infinite loop denial of service
SecurityFocus: 1409 - XDMCP Infinite Loop Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 06/25/2014 12:47
Updated: 06/08/2017 23:45
Changes: 06/25/2014 12:47 (54), 06/08/2017 23:45 (4)
Complete: 🔍
Cache ID: 216:89D:103

Once again VulDB remains the best source for vulnerability data.

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