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4.3
MEDIUM CVSS 2.0
CVE-2014-8091
X.Org X Window System Sun-Des Authentication Null Pointer Dereference Vulnerability
Description

X.Org X Window System (aka X11 and X) X11R5 and X.Org Server (aka xserver and xorg-server) before 1.16.3, when using SUN-DES-1 (Secure RPC) authentication credentials, does not check the return value of a malloc call, which allows remote attackers to cause a denial of service (NULL pointer dereference and server crash) via a crafted connection request.

INFO

Published Date :

Dec. 10, 2014, 3:59 p.m.

Last Modified :

Aug. 29, 2025, 1:42 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2014-8091 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 X.org x_server
2 X.org xorg-server
3 X.org x11
: Total Affected Vendor : 1 | Products : 3
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
Solution
This vulnerability can be remediated by updating the X.Org X server packages to the latest version.
  • Update the affected X.Org X server packages.
  • Consult the vendor's security advisory for specific instructions.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2014-8091.

URL Resource
http://advisories.mageia.org/MGASA-2014-0532.html
http://secunia.com/advisories/61947
http://secunia.com/advisories/62292
http://www.debian.org/security/2014/dsa-3095
http://www.mandriva.com/security/advisories?name=MDVSA-2015:119
http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html Vendor Advisory
http://www.securityfocus.com/bid/71597
http://www.x.org/wiki/Development/Security/Advisory-2014-12-09/ Patch Vendor Advisory
https://security.gentoo.org/glsa/201504-06
http://advisories.mageia.org/MGASA-2014-0532.html
http://secunia.com/advisories/61947
http://secunia.com/advisories/62292
http://www.debian.org/security/2014/dsa-3095
http://www.mandriva.com/security/advisories?name=MDVSA-2015:119
http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html Vendor Advisory
http://www.securityfocus.com/bid/71597
http://www.x.org/wiki/Development/Security/Advisory-2014-12-09/ Patch Vendor Advisory
https://security.gentoo.org/glsa/201504-06
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2014-8091 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2014-8091 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2014-8091 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2014-8091 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CPE Deprecation Remap by [email protected]

    Aug. 29, 2025

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:x.org:xorg-server:*:*:*:*:*:*:*:* versions from (including) 1.16.2 OR *cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:* versions from (including) 1.16.2
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://advisories.mageia.org/MGASA-2014-0532.html
    Added Reference http://secunia.com/advisories/61947
    Added Reference http://secunia.com/advisories/62292
    Added Reference http://www.debian.org/security/2014/dsa-3095
    Added Reference http://www.mandriva.com/security/advisories?name=MDVSA-2015:119
    Added Reference http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
    Added Reference http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
    Added Reference http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
    Added Reference http://www.securityfocus.com/bid/71597
    Added Reference http://www.x.org/wiki/Development/Security/Advisory-2014-12-09/
    Added Reference https://security.gentoo.org/glsa/201504-06
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 13, 2023

    Action Type Old Value New Value
    Changed Description It was found that the X.Org server did not properly handle SUN-DES-1 (Secure RPC) authentication credentials. A malicious, unauthenticated client could use this flaw to crash the X.Org server by submitting a specially crafted authentication request. X.Org X Window System (aka X11 and X) X11R5 and X.Org Server (aka xserver and xorg-server) before 1.16.3, when using SUN-DES-1 (Secure RPC) authentication credentials, does not check the return value of a malloc call, which allows remote attackers to cause a denial of service (NULL pointer dereference and server crash) via a crafted connection request.
    Removed CVSS V2 Red Hat, Inc. (AV:A/AC:M/Au:S/C:N/I:N/A:P)
    Removed Reference https://access.redhat.com/errata/RHSA-2014:1982 [No Types Assigned]
    Removed Reference https://access.redhat.com/errata/RHSA-2014:1983 [No Types Assigned]
    Removed Reference https://access.redhat.com/security/cve/CVE-2014-8091 [No Types Assigned]
    Removed Reference https://bugzilla.redhat.com/show_bug.cgi?id=1168680 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 02, 2023

    Action Type Old Value New Value
    Changed Description X.Org X Window System (aka X11 and X) X11R5 and X.Org Server (aka xserver and xorg-server) before 1.16.3, when using SUN-DES-1 (Secure RPC) authentication credentials, does not check the return value of a malloc call, which allows remote attackers to cause a denial of service (NULL pointer dereference and server crash) via a crafted connection request. It was found that the X.Org server did not properly handle SUN-DES-1 (Secure RPC) authentication credentials. A malicious, unauthenticated client could use this flaw to crash the X.Org server by submitting a specially crafted authentication request.
    Added CVSS V2 Red Hat, Inc. (AV:A/AC:M/Au:S/C:N/I:N/A:P)
    Added Reference https://access.redhat.com/security/cve/CVE-2014-8091 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2014:1982 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2014:1983 [No Types Assigned]
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1168680 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 03, 2017

    Action Type Old Value New Value
    Added Reference http://secunia.com/advisories/61947 [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 22, 2016

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/201504-06 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 28, 2016

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/71597 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 26, 2016

    Action Type Old Value New Value
    Added Reference http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
  • CVE Modified by [email protected]

    Oct. 18, 2016

    Action Type Old Value New Value
    Added Reference http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
  • Modified Analysis by [email protected]

    Mar. 31, 2016

    Action Type Old Value New Value
    Changed CPE Configuration Configuration 1 OR *cpe:2.3:a:x.org:x11:5.0:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:a:x.org:xorg-server:1.16.2:*:*:*:*:*:*:* (and previous) Configuration 1 OR *cpe:2.3:a:x.org:xorg-server:1.16.2:*:*:*:*:*:*:* (and previous) Configuration 2 OR *cpe:2.3:a:x.org:x11:5.0:*:*:*:*:*:*:*
    Changed Reference Type http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html No Types Assigned http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html Advisory
  • CVE Modified by [email protected]

    Jul. 17, 2015

    Action Type Old Value New Value
    Added Reference http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
  • Modified Analysis by [email protected]

    Apr. 09, 2015

    Action Type Old Value New Value
    Changed CPE Configuration Configuration 1 OR *cpe:2.3:a:x:xorg-server:1.16.2:*:*:*:*:*:*:* (and previous) Configuration 2 OR *cpe:2.3:a:x:x.org_x11:5.0:*:*:*:*:*:*:* Configuration 1 OR *cpe:2.3:a:x.org:x11:5.0:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:a:x.org:xorg-server:1.16.2:*:*:*:*:*:*:* (and previous)
  • CVE Modified by [email protected]

    Apr. 03, 2015

    Action Type Old Value New Value
    Added Reference http://advisories.mageia.org/MGASA-2014-0532.html
    Added Reference http://www.mandriva.com/security/advisories?name=MDVSA-2015:119
  • CVE Modified by [email protected]

    Mar. 06, 2015

    Action Type Old Value New Value
    Added Reference http://www.debian.org/security/2014/dsa-3095
  • CVE Modified by [email protected]

    Jan. 22, 2015

    Action Type Old Value New Value
    Removed Reference http://nvidia.custhelp.com/app/answers/detail/a_id/3610
    Added Reference http://secunia.com/advisories/62292
  • Modified Analysis by [email protected]

    Dec. 16, 2014

    Action Type Old Value New Value
    Changed CPE Configuration Configuration 1 OR *cpe:2.3:a:x:x_window_system:x11r5:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:a:x:xorg-server:1.16.2:*:*:*:*:*:*:* (and previous) Configuration 1 OR *cpe:2.3:a:x:xorg-server:1.16.2:*:*:*:*:*:*:* (and previous) Configuration 2 OR *cpe:2.3:a:x:x.org_x11:5.0:*:*:*:*:*:*:*
  • Modified Analysis by [email protected]

    Dec. 10, 2014

    Action Type Old Value New Value
    Added Evaluator Description <a href="http://cwe.mitre.org/data/definitions/476.html">CWE-476: NULL Pointer Dereference</a>
    Added CPE Configuration Configuration 1 OR *cpe:2.3:a:x:x_window_system:x11r5:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:a:x:xorg-server:1.16.2:*:*:*:*:*:*:* (and previous)
    Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Changed Reference Type http://www.x.org/wiki/Development/Security/Advisory-2014-12-09/ No Types Assigned http://www.x.org/wiki/Development/Security/Advisory-2014-12-09/ Advisory, Patch
    Added CWE NVD-CWE-Other
  • Initial Analysis by [email protected]

    Dec. 10, 2014

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 4.3
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

6.31 }} -4.32%

score

0.90016

percentile