XFree86/X11 prior 6.1 DBE Extension SProcDbeSwapBuffers memory corruption

CVSS Meta Temp Score
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6.0$0-$5k0.00

A vulnerability was found in XFree86 and X11 (Windowing System Software). It has been rated as critical. Affected by this issue is the function SProcDbeSwapBuffers of the component DBE Extension. 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:

The DBE extension in X.Org X Window System (aka X11 or X) X11R6.1 and X.Org Server (aka xserver and xorg-server) before 1.16.3 allows remote authenticated users to cause a denial of service (out-of-bounds read or write) or possibly execute arbitrary code via a crafted length or index value to the (1) ProcDbeSwapBuffers or (2) SProcDbeSwapBuffers function.

The weakness was presented 12/10/2014 by Ilja van Sprundel (Website). The advisory is available at x.org. This vulnerability is handled as CVE-2014-8097 since 10/10/2014. The exploitation is known to be easy. The attack may be launched remotely. The successful exploitation requires a simple authentication. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 80557 (Amazon Linux AMI : xorg-x11-server (ALAS-2015-470)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350232 (Amazon Linux Security Advisory for xorg-x11-server: ALAS-2015-470).

Upgrading to version 6.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (99223) and Tenable (80557). See 68379, 68380, 73184 and 73183 for similar entries.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 80557
Nessus Name: Amazon Linux AMI : xorg-x11-server (ALAS-2015-470)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 703095
OpenVAS Name: Debian Security Advisory DSA 3095-1 (xorg-server - security update)
OpenVAS File: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: XFree86/X11 6.1

Timelineinfo

10/10/2014 🔍
12/09/2014 +60 days 🔍
12/10/2014 +1 days 🔍
12/10/2014 +0 days 🔍
03/27/2015 +107 days 🔍
07/14/2015 +109 days 🔍
07/16/2015 +2 days 🔍
04/07/2022 +2457 days 🔍

Sourcesinfo

Advisory: RHSA-2014:1983
Researcher: Ilja van Sprundel
Status: Not defined
Confirmation: 🔍

CVE: CVE-2014-8097 (🔍)
OVAL: 🔍

X-Force: 99223
Vulnerability Center: 51363 - X.Org X Window System X11R4 and X.Org Server <1.16.3 Remote DoS and Code Execution in the DBE Extension, Medium
SecurityFocus: 71604 - X.Org X Server CVE-2014-8097 Out of Bounds Multiple Integer Overflow Vulnerabilities
Secunia: 62292

See also: 🔍

Entryinfo

Created: 03/27/2015 14:56
Updated: 04/07/2022 15:13
Changes: 03/27/2015 14:56 (68), 07/13/2017 10:40 (6), 04/07/2022 15:13 (4)
Complete: 🔍

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