XFree86/X11 1.16.2/1.16.2.99.901/4 SProcRenderCompositeGlyphs memory corruption

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

Summaryinfo

A vulnerability has been found in XFree86 and X11 and classified as critical. This impacts the function SProcRenderCompositeGlyphs. The manipulation leads to memory corruption. This vulnerability is documented as CVE-2014-8100. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in XFree86 and X11 (Windowing System Software). This issue affects the function SProcRenderCompositeGlyphs. 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. The summary by CVE is:

The Render extension in XFree86 4.0.1, X.Org X Window System (aka X11 or X) X11R6.7, 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) ProcRenderQueryVersion, (2) SProcRenderQueryVersion, (3) SProcRenderQueryPictFormats, (4) SProcRenderQueryPictIndexValues, (5) SProcRenderCreatePicture, (6) SProcRenderChangePicture, (7) SProcRenderSetPictureClipRectangles, (8) SProcRenderFreePicture, (9) SProcRenderComposite, (10) SProcRenderScale, (11) SProcRenderCreateGlyphSet, (12) SProcRenderReferenceGlyphSet, (13) SProcRenderFreeGlyphSet, (14) SProcRenderFreeGlyphs, or (15) SProcRenderCompositeGlyphs function.

The weakness was released 12/10/2014 by Ilja van Sprundel (Website). The advisory is shared at x.org. The identification of this vulnerability is CVE-2014-8100 since 10/10/2014. The exploitation is known to be easy. The attack may be initiated remotely. A simple authentication is necessary for exploitation. Technical details are known, but no exploit is available.

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 4.0.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (99226), Tenable (80557), SecurityFocus (BID 71602†), Secunia (SA62292†) and Vulnerability Center (SBV-51365†). Entries connected to this vulnerability are available at VDB-68379, VDB-68380, VDB-73184 and VDB-73183. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
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: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: XFree86/X11 4.0.1

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 🔍
08/29/2025 +3697 days 🔍

Sourcesinfo

Advisory: RHSA-2014:1983
Researcher: Ilja van Sprundel
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-8100 (🔍)
GCVE (CVE): GCVE-0-2014-8100
GCVE (VulDB): GCVE-100-73181

OVAL: 🔍

X-Force: 99226
SecurityFocus: 71602 - X.Org X Server CVE-2014-8100 Out of Bounds Read Multiple Remote Denial of Service Vulnerabilities
Secunia: 62292
Vulnerability Center: 51365 - XFree86, X.Org X Window System and X.Org Server Remote DoS and Code Execution in the Render Extension - CVE-2014-8100, Medium

See also: 🔍

Entryinfo

Created: 03/27/2015 14:56
Updated: 08/29/2025 15:49
Changes: 03/27/2015 14:56 (67), 07/13/2017 10:41 (6), 04/07/2022 15:32 (4), 08/29/2025 15:49 (18)
Complete: 🔍
Cache ID: 216:9BA:103

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