X.org X11 1.0 integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in X.org X11 1.0 and classified as critical. This issue affects the function ProcPutImage/GetHosts/RegionSizeof/REQUEST_FIXED_SIZE. Executing a manipulation can lead to integer overflow. This vulnerability is registered as CVE-2014-8092. No exploit is available. This vulnerability is historically impactful due to its background and the reception it garnered. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in X.org X11 1.0 (Windowing System Software). It has been declared as critical. This vulnerability affects the function ProcPutImage/GetHosts/RegionSizeof/REQUEST_FIXED_SIZE. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability.

The issue has been introduced in 09/15/1987. The weakness was published 12/09/2014 by Ilja van Sprundel with IOActive as Advisory-2014-12-09 as confirmed advisory (Website). The advisory is shared for download at x.org. This vulnerability was named CVE-2014-8092 since 10/10/2014. The exploitation appears to be easy. The attack can be initiated remotely. A single authentication is needed for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/29/2025). This vulnerability has a historic impact due to its background and reception. The advisory points out:

These calls do not check that their calculations for how much memory is needed to handle the client's request have not overflowed, so can result in out of bounds reads or writes. These calls all occur only after a client has successfully authenticated itself.

The vulnerability was handled as a non-public zero-day exploit for at least 9947 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 84396 (SUSE SLED12 / SLES12 Security Update : xorg-x11-server (SUSE-SU-2015:1127-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE 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 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (99218), Tenable (84396), SecurityFocus (BID 71595†), Secunia (SA62292†) and SecurityTracker (ID 1031326†). Additional details are provided at seclists.org. Similar entries are available at VDB-68379, VDB-73184, VDB-73183 and VDB-73182. Once again VulDB remains the best source for vulnerability data.

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CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.5

VulDB Base Score: 6.3
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

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Current Price Estimation: 🔍

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Nessus ID: 84396
Nessus Name: SUSE SLED12 / SLES12 Security Update : xorg-x11-server (SUSE-SU-2015:1127-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

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

Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Timelineinfo

09/15/1987 🔍
10/10/2014 +9887 days 🔍
12/09/2014 +60 days 🔍
12/09/2014 +0 days 🔍
12/09/2014 +0 days 🔍
12/10/2014 +1 days 🔍
12/10/2014 +0 days 🔍
12/11/2014 +1 days 🔍
06/25/2015 +196 days 🔍
07/14/2015 +19 days 🔍
07/16/2015 +2 days 🔍
08/29/2025 +3697 days 🔍

Sourcesinfo

Vendor: x.org

Advisory: Advisory-2014-12-09
Researcher: Ilja van Sprundel
Organization: IOActive
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-8092 (🔍)
GCVE (CVE): GCVE-0-2014-8092
GCVE (VulDB): GCVE-100-68380

OVAL: 🔍

X-Force: 99218 - X server multiple integer overflow, High Risk
SecurityFocus: 71595 - X.Org X Server Protocol Handling Multiple Integer Overflow Vulnerabilities
Secunia: 62292
SecurityTracker: 1031326 - X Multiple Memory Corruption Flaws Let Remote Users Deny Service and Execute Arbitrary Code
Vulnerability Center: 51359 - X.Org X Window System (X11) X11R1 and X.Org Server <1.16.3 Remote DoS and Code Execution, Medium

Misc.: 🔍
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Entryinfo

Created: 12/11/2014 10:33
Updated: 08/29/2025 15:49
Changes: 12/11/2014 10:33 (89), 07/13/2017 10:39 (5), 02/28/2022 02:51 (3), 02/28/2022 02:58 (1), 08/29/2025 15:49 (15)
Complete: 🔍
Cache ID: 216:1A5:103

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