CVE-2011-4029

X.Org xorg 1.4 < 1.11.2 - File Permission Change

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to change the permissions of arbitrary files to 444, read those files, and possibly cause a denial of service (removed execution permission) via a symlink attack on a temporary lock file.

La función LockServer en os/utils.c en xserver X.Org antes de v1.11.2 permite a los usuarios locales cambiar los permisos de archivos de su elección a 444, leer los archivos, y posiblemente causar una denegación de servicio (por permiso retirado de ejecución) a través de un ataque de enlace simbólico a un archivo de bloqueo temporal.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

High

Authentication

None

Confidentiality

Complete

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-10-09 CVE Reserved
2011-10-28 First Exploit
2012-07-03 CVE Published
2024-09-17 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CAPEC

References (8)

URL	Tag	Source
http://lists.freedesktop.org/archives/xorg/2011-October/053680.html	Mailing List

URL	Date	SRC
https://www.exploit-db.com/exploits/18040	2011-10-28

URL	Date	SRC
http://cgit.freedesktop.org/xorg/xserver/commit/?id=b67581cf825940fdf52bf2e0af4330e695d724a4	2020-08-24

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2012-0939.html	2020-08-24
http://secunia.com/advisories/46460	2020-08-24
http://secunia.com/advisories/49579	2020-08-24
https://access.redhat.com/security/cve/CVE-2011-4029	2012-06-19
https://bugzilla.redhat.com/show_bug.cgi?id=745024	2012-06-19

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
X.org Search vendor "X.org"		X Server Search vendor "X.org" for product "X Server"				<= 1.11.1 Search vendor "X.org" for product "X Server" and version " <= 1.11.1"		-		Affected
X.org Search vendor "X.org"		X Server Search vendor "X.org" for product "X Server"				1.11.0 Search vendor "X.org" for product "X Server" and version "1.11.0"		-		Affected