XFree86 4.2.1/4.3.0 Font Library integer coercion

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

A vulnerability, which was classified as critical, has been found in XFree86 4.2.1/4.3.0. Affected by this issue is some unknown functionality of the component Font Library Handler. The manipulation with an unknown input leads to a integer coercion vulnerability. Using CWE to declare the problem leads to CWE-192. Integer coercion refers to a set of flaws pertaining to the type casting, extension, or truncation of primitive data types. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Multiple integer overflows in the font libraries for XFree86 4.3.0 allow local or remote attackers to cause a denial of service or execute arbitrary code via heap-based and stack-based buffer overflow attacks.

The bug was discovered 08/30/2003. The weakness was shared 08/30/2003 by Matthieu Herrb with isen as not defined posting (Bugtraq). The advisory is available at securityfocus.com. This vulnerability is handled as CVE-2003-0730 since 09/02/2003. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 14071 (Mandrake Linux Security Advisory : XFree86 (MDKSA-2003:089)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 95005 (Red Hat XFree86 Multiple Vulnerabilities).

Upgrading to version 4.3.99.12 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at xfree86.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (13058) and Tenable (14071). xfree86.org is providing further details. The entry 20848 is related to this item.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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CVSSv2info

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Exploitinginfo

Class: Integer coercion
CWE: CWE-192 / CWE-189
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

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Nessus ID: 14071
Nessus Name: Mandrake Linux Security Advisory : XFree86 (MDKSA-2003:089)
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OpenVAS ID: 53665
OpenVAS Name: Debian Security Advisory DSA 380-1 (xfree86)
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Upgrade: XFree86 4.3.99.12
Patch: xfree86.org

Timelineinfo

08/30/2003 🔍
08/30/2003 +0 days 🔍
08/30/2003 +0 days 🔍
08/30/2003 +0 days 🔍
09/01/2003 +2 days 🔍
09/02/2003 +1 days 🔍
09/11/2003 +9 days 🔍
10/20/2003 +39 days 🔍
04/09/2004 +171 days 🔍
07/31/2004 +113 days 🔍
01/27/2005 +180 days 🔍
06/26/2019 +5263 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Matthieu Herrb
Organization: isen
Status: Not defined
Confirmation: 🔍

CVE: CVE-2003-0730 (🔍)
X-Force: 13058 - XFree86 font functions integer overflow, High Risk
Vulnerability Center: 6922 - DoS in XFree86 4.2.1, 4.3 .0 via Multiple Integer Overflows, High
SecuriTeam: securiteam.com
SecurityFocus: 8514 - XFree86 Multiple Unspecified Integer Overflow Vulnerabilities
Secunia: 24247 - Avaya CMS xfs / X Render and DBE Extensions Vulnerabilities, Less Critical
OSVDB: 10249 - XFree Font Libraries Multiple Unspecified Local Overflows
Vupen: ADV-2007-0589

Misc.: 🔍
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Entryinfo

Created: 09/01/2003 12:13
Updated: 06/26/2019 12:18
Changes: 09/01/2003 12:13 (103), 06/26/2019 12:18 (1)
Complete: 🔍

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