XFree86 X11r6 up to 4.3.0 ReadFontAlias/CopyISOLatin1Lowered memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in XFree86 X11r6 up to 4.3.0. This impacts the function ReadFontAlias/CopyISOLatin1Lowered. This manipulation causes memory corruption. This vulnerability appears as CVE-2004-0084. In addition, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in XFree86 X11r6 up to 4.3.0 and classified as critical. Affected by this vulnerability is the function ReadFontAlias/CopyISOLatin1Lowered. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in the ReadFontAlias function in XFree86 4.1.0 to 4.3.0, when using the CopyISOLatin1Lowered function, allows local or remote authenticated users to execute arbitrary code via a malformed entry in the font alias (font.alias) file, a different vulnerability than CVE-2004-0083 and CVE-2004-0106.

The bug was discovered 02/12/2004. The weakness was presented 03/03/2004 by Greg MacManus as confirmed advisory (CERT.org). The advisory is shared at kb.cert.org. This vulnerability is known as CVE-2004-0084. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 15280 (Debian DSA-443-1 : xfree86 - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (15200), Exploit-DB (23690), Tenable (15280), SecurityFocus (BID 9652†) and OSVDB (8341†). See VDB-20848 and VDB-21644 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 15280
Nessus Name: Debian DSA-443-1 : xfree86 - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53680
OpenVAS Name: Debian Security Advisory DSA 443-1 (xfree86)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/12/2004 🔍
02/12/2004 +0 days 🔍
02/12/2004 +0 days 🔍
02/19/2004 +7 days 🔍
03/03/2004 +13 days 🔍
03/03/2004 +0 days 🔍
09/29/2004 +210 days 🔍
07/24/2005 +298 days 🔍
10/15/2014 +3370 days 🔍
12/16/2024 +3715 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Researcher: Greg MacManus
Status: Confirmed

CVE: CVE-2004-0084 (🔍)
GCVE (CVE): GCVE-0-2004-0084
GCVE (VulDB): GCVE-100-21613

OVAL: 🔍

CERT: 🔍
X-Force: 15200
SecurityFocus: 9652 - XFree86 CopyISOLatin1Lowered Font_Name Buffer Overflow Vulnerability
OSVDB: 8341 - XFree86 CopyISOLatin1Lowered buffer overflow
Vulnerability Center: 8639 - Buffer Overflow in XFree86 4.1.0 - 4.3.0 ReadFontAlias When Using CopyISOLatin1Lowered, Medium

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

Entryinfo

Created: 10/15/2014 15:11
Updated: 12/16/2024 02:01
Changes: 10/15/2014 15:11 (72), 06/07/2019 09:45 (5), 12/01/2024 15:48 (24), 12/16/2024 02:01 (1)
Complete: 🔍
Cache ID: 216:F3C:103

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