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

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Red Hat Linux 6.0/6.1/6.2. Affected by this issue is some unknown functionality of the file xfs of the component X Font Server. The manipulation results in denial of service. This vulnerability is identified as CVE-2000-0263. Additionally, an exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Red Hat Linux 6.0/6.1/6.2 (Operating System). Affected is an unknown function 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. CVE summarizes:

The X font server xfs in Red Hat Linux 6.x allows an attacker to cause a denial of service via a malformed request.

The issue has been introduced in 04/26/1999. The weakness was released 04/16/2000 by Michal Zalewski (Website). The advisory is shared for download at securityfocus.com. This vulnerability is traded as CVE-2000-0263. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. 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 X-Force (4305), Exploit-DB (19850), SecurityFocus (BID 1111†) and Vulnerability Center (SBV-4307†). Entry connected to this vulnerability is available at VDB-15459. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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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VulDB Base Score: 🔍
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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: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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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 🔍
04/16/2000 +0 days 🔍
05/17/2004 +1492 days 🔍
06/24/2014 +3690 days 🔍
11/11/2024 +3793 days 🔍

Sourcesinfo

Vendor: redhat.com

Advisory: securityfocus.com⛔
Researcher: Michal Zalewski
Status: Confirmed

CVE: CVE-2000-0263 (🔍)
GCVE (CVE): GCVE-0-2000-0263
GCVE (VulDB): GCVE-100-15456
X-Force: 4305
SecurityFocus: 1111 - Multiple Vendor X Font Server DoS and Buffer Overflow Vulnerabilities
Vulnerability Center: 4307 - DoS in X Font Server xfs in Red Hat Linux 6.x, Low

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

Entryinfo

Created: 06/24/2014 11:24
Updated: 11/11/2024 05:24
Changes: 06/24/2014 11:24 (68), 05/21/2019 16:25 (1), 11/11/2024 05:24 (19)
Complete: 🔍
Cache ID: 216:737:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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