X.org X11 11 6.x Pixmap Generator numeric error

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in X.org X11 11 6.x. This impacts an unknown function of the component Pixmap Generator. This manipulation causes numeric error. This vulnerability is tracked as CVE-2005-2495. The attack is only possible within the local network. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in X.org X11 11 6.x (Windowing System Software). Affected by this vulnerability is an unknown code of the component Pixmap Generator. The manipulation with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Multiple integer overflows in XFree86 before 4.3.0 allow user-assisted attackers to execute arbitrary code via a crafted pixmap image.

The bug was discovered 05/05/2004. The weakness was disclosed 09/13/2005 by Luke Hutchison as Bug 166859 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2005-2495 since 08/08/2005. The attack needs to be initiated within the local network. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 496 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 22952 (Solaris 10 (sparc) : 119059-73 (deprecated)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Solaris Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117842 (CentOS Security Update for XFree86 (CESA-2005:501)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at x.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 6 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (22244), Tenable (22952), SecurityFocus (BID 14807†), OSVDB (19352†) and Secunia (SA21318†). The entries VDB-1748 and VDB-38077 are pretty similar. 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: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 22952
Nessus Name: Solaris 10 (sparc) : 119059-73 (deprecated)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 55445
OpenVAS Name: Slackware Advisory SSA:2005-269-02 X.Org pixmap overflow
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: x.org

Timelineinfo

05/05/2004 🔍
08/08/2005 +460 days 🔍
09/12/2005 +35 days 🔍
09/13/2005 +1 days 🔍
09/13/2005 +0 days 🔍
09/13/2005 +0 days 🔍
09/14/2005 +0 days 🔍
09/15/2005 +1 days 🔍
09/19/2005 +4 days 🔍
11/06/2006 +413 days 🔍
06/30/2025 +6811 days 🔍

Sourcesinfo

Vendor: x.org

Advisory: Bug 166859
Researcher: Luke Hutchison
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-2495 (🔍)
GCVE (CVE): GCVE-0-2005-2495
GCVE (VulDB): GCVE-100-1747

OVAL: 🔍

CERT: 🔍
X-Force: 22244 - X.Org pixmap buffer overflow, High Risk
SecurityFocus: 14807 - XFree86 Pixmap Allocation Local Privilege Escalation Vulnerability
Secunia: 21318 - HP-UX update for Xserver, Less Critical
OSVDB: 19352 - X11/XFree86 Pixmap Allocation Local Overflow
SecurityTracker: 1014887
Vulnerability Center: 9196
Vupen: ADV-2006-3140

See also: 🔍

Entryinfo

Created: 09/14/2005 16:21
Updated: 06/30/2025 05:23
Changes: 09/14/2005 16:21 (97), 06/25/2024 21:21 (17), 01/19/2025 06:00 (3), 06/30/2025 05:23 (2)
Complete: 🔍
Cache ID: 216::103

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