X.org X11 up to 7.1-1.1.0 Renderer Extension ProcRenderAddGlyphs integer coercion

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in X.org X11 up to 7.1-1.1.0. Affected is the function ProcRenderAddGlyphs of the component Renderer Extension. This manipulation causes integer coercion. This vulnerability is registered as CVE-2006-6101. No exploit is available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in X.org X11 up to 7.1-1.1.0 (Windowing System Software). It has been declared as critical. Affected by this vulnerability is the function ProcRenderAddGlyphs of the component Renderer Extension. The manipulation with an unknown input leads to a integer coercion vulnerability. The CWE definition for the vulnerability is CWE-192. Integer coercion refers to a set of flaws pertaining to the type casting, extension, or truncation of primitive data types. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Integer overflow in the ProcRenderAddGlyphs function in the Render extension for X.Org 6.8.2, 6.9.0, 7.0, and 7.1, and XFree86 X server, allows local users to execute arbitrary code via a crafted X protocol request that triggers memory corruption during processing of glyph management data structures.

The weakness was published 01/10/2007 by Sean Larsson with iDefense (Website). It is possible to read the advisory at labs.idefense.com. This vulnerability is known as CVE-2006-6101 since 11/24/2006. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 67435 (Oracle Linux 4 : xorg-x11 (ELSA-2007-0003)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 156205 (Oracle Enterprise Linux Update for XFree86 (ELSA-2007:0002)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at x.org. A possible mitigation has been published 5 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (31337), Tenable (67435), SecurityFocus (BID 21968†), OSVDB (32084†) and Secunia (SA25802†). Similar entries are available at VDB-2817, VDB-2816 and VDB-34129. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67435
Nessus Name: Oracle Linux 4 : xorg-x11 (ELSA-2007-0003)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 58133
OpenVAS Name: Slackware Advisory SSA:2007-066-02 x11
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Patch: x.org

Timelineinfo

11/24/2006 🔍
12/31/2006 +37 days 🔍
01/09/2007 +9 days 🔍
01/10/2007 +1 days 🔍
01/10/2007 +0 days 🔍
01/10/2007 +0 days 🔍
01/12/2007 +1 days 🔍
01/15/2007 +3 days 🔍
06/25/2007 +161 days 🔍
07/12/2013 +2209 days 🔍
04/28/2019 +2116 days 🔍

Sourcesinfo

Vendor: x.org

Advisory: labs.idefense.com⛔
Researcher: Sean Larsson
Organization: iDefense
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-6101 (🔍)
GCVE (CVE): GCVE-0-2006-6101
GCVE (VulDB): GCVE-100-2815

OVAL: 🔍

X-Force: 31337 - X.Org and XFree86 X server Render ProcRenderAddGlyphs() integer overflow, High Risk
SecurityFocus: 21968 - X.Org DBE And Render Extensions Multiple Local Integer Overflow Vulnerabilities
Secunia: 25802 - HP-UX update for Xserver, Less Critical
OSVDB: 32084 - Multiple Vendor Render Extension ProcRenderAddGlyphs Function Overflow
SecurityTracker: 1017495
SecuriTeam: securiteam.com
Vupen: ADV-2007-2233

See also: 🔍

Entryinfo

Created: 01/12/2007 10:43
Updated: 04/28/2019 07:53
Changes: 01/12/2007 10:43 (94), 04/28/2019 07:53 (7)
Complete: 🔍
Cache ID: 216:22D:103

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