VDB-17432 · CVE-2001-0955 · XFDB 7673

XFree86 X11r6 4.0/4.0.1/4.0.3 Glyph fbglyph.c memory corruption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.9	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in XFree86 X11r6 4.0/4.0.1/4.0.3. This affects an unknown function of the file fbglyph.c of the component Glyph Handler. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2001-0955. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in XFree86 X11r6 4.0/4.0.1/4.0.3. It has been rated as critical. Affected by this issue is some unknown functionality of the file fbglyph.c of the component Glyph Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in fbglyph.c in XFree86 before 4.2.0, related to glyph clipping for large origins, allows attackers to cause a denial of service and possibly gain privileges via a large number of characters, possibly through the web page search form of KDE Konqueror or from an xterm command with a long title.

The weakness was disclosed 09/22/2001 (Website). The advisory is shared for download at marc.theaimsgroup.com. This vulnerability is handled as CVE-2001-0955. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (7673) and SecurityFocus (BID 3657†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

XFree86

Name

X11r6

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.9

VulDB Base Score: 9.3
VulDB Temp Score: 8.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/22/2001 🔍
09/22/2001 +0 days 🔍
12/08/2001 +77 days 🔍
07/09/2014 +4596 days 🔍
06/04/2018 +1426 days 🔍

Sourcesinfo

Advisory: marc.theaimsgroup.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2001-0955 (🔍)
GCVE (CVE): GCVE-0-2001-0955
GCVE (VulDB): GCVE-100-17432
X-Force: 7673 - XFree86 buffer overflow using the Konqueror Web browser and file manager
SecurityFocus: 3657 - XFree86 fbglyph Denial of Service Vulnerability

Entryinfo

Created: 07/09/2014 13:23
Updated: 06/04/2018 08:42
Changes: 07/09/2014 13:23 (49), 06/04/2018 08:42 (6)
Complete: 🔍
Cache ID: 216::103

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