Red Hat Linux 6.0/6.1/6.2 X Font Server xfs denial of service

CVSS Meta Temp Score
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in Red Hat Linux 6.0/6.1/6.2 and classified as problematic. This issue affects some unknown processing of the file xfs of the component X Font Server. Performing a manipulation results in denial of service. This vulnerability is cataloged as CVE-2000-0286. Furthermore, there is an exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Red Hat Linux 6.0/6.1/6.2 (Operating System). It has been classified as problematic. This affects an unknown part of the file xfs of the component X Font Server. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

X fontserver xfs allows local users to cause a denial of service via malformed input to the server.

The issue has been introduced in 04/26/1999. The weakness was shared 04/16/2000 by Michal Zalewski (Website). It is possible to read the advisory at archives.neohapsis.com. This vulnerability is uniquely identified as CVE-2000-0286. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

A public exploit has been developed in ANSI C. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 356 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 95002 (X Windows Font Server Denial of Service Vulnerability).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (19850), SecurityFocus (BID 1111†) and Vulnerability Center (SBV-4307†). The entry VDB-15456 is related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.6

VulDB Base Score: 4.0
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/26/1999 🔍
04/16/2000 +356 days 🔍
04/16/2000 +0 days 🔍
04/16/2000 +0 days 🔍
06/24/2014 +5182 days 🔍
11/10/2024 +3792 days 🔍

Sourcesinfo

Vendor: redhat.com

Advisory: archives.neohapsis.com
Researcher: Michal Zalewski
Status: Confirmed

CVE: CVE-2000-0286 (🔍)
GCVE (CVE): GCVE-0-2000-0286
GCVE (VulDB): GCVE-100-15459
SecurityFocus: 1111 - Multiple Vendor X Font Server DoS and Buffer Overflow Vulnerabilities
Vulnerability Center: 4307

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/24/2014 11:28
Updated: 11/10/2024 16:37
Changes: 06/24/2014 11:28 (61), 04/14/2019 20:27 (1), 07/01/2024 17:54 (17), 11/10/2024 16:37 (4)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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