X.Org Xserver 1.4 procgetreservedcolormapentries memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

A vulnerability was found in X.Org Xserver 1.4. It has been classified as critical. Affected is the function procgetreservedcolormapentries. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality. CVE summarizes:

The ProcGetReservedColormapEntries function in the TOG-CUP extension in X.Org Xserver before 1.4.1 allows context-dependent attackers to read the contents of arbitrary memory locations via a request containing a 32-bit value that is improperly used as an array index.

The bug was discovered 01/17/2008. The weakness was disclosed 01/18/2008 by regenrecht with CERT/CC (Website). The advisory is shared for download at securityfocus.com. This vulnerability is traded as CVE-2007-6428 since 12/18/2007. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 30022 (CentOS 3 : XFree86 (CESA-2008:0029)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165710 (SUSE Enterprise Linux Security Update (SUSE-SR:2008:008)).

Upgrading to version 1.4 eliminates this vulnerability. A possible mitigation has been published 5 days after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 31274.

The vulnerability is also documented in the databases at X-Force (39761) and Tenable (30022). The entries 36018, 41234, 40634 and 40633 are pretty similar.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
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CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

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Current Price Estimation: 🔍

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Nessus ID: 30022
Nessus Name: CentOS 3 : XFree86 (CESA-2008:0029)
Nessus File: 🔍
Nessus Risk: 🔍
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Nessus Context: 🔍

OpenVAS ID: 60210
OpenVAS Name: Debian Security Advisory DSA 1466-2 (xorg-server, libxfont, xfree86)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
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Upgrade: Xserver 1.4
TippingPoint: 🔍

Timelineinfo

12/18/2007 🔍
01/17/2008 +30 days 🔍
01/17/2008 +0 days 🔍
01/17/2008 +0 days 🔍
01/17/2008 +0 days 🔍
01/18/2008 +1 days 🔍
01/18/2008 +0 days 🔍
01/21/2008 +3 days 🔍
01/21/2008 +0 days 🔍
01/23/2008 +2 days 🔍
03/16/2015 +2609 days 🔍
08/04/2019 +1602 days 🔍

Sourcesinfo

Vendor: x.org

Advisory: securityfocus.com⛔
Researcher: regenrecht
Organization: CERT/CC
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-6428 (🔍)
OVAL: 🔍

X-Force: 39761
SecurityTracker: 1019232
Vulnerability Center: 17423 - X.Org Xserver < 1.4.1 TOG-CUP Extension Remote Code Execution, High
SecurityFocus: 27336 - RETIRED: X.Org X Server Local Privilege Escalation and Information Disclosure Vulnerabilities
Secunia: 28273
OSVDB: 40941 - CVE-2007-6428 - X.Org - Xserver - Information Disclosure Issue
Vupen: ADV-2008-0179

See also: 🔍

Entryinfo

Created: 03/16/2015 13:43
Updated: 08/04/2019 08:07
Changes: 03/16/2015 13:43 (78), 08/04/2019 08:07 (13)
Complete: 🔍

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