CVE-2011-4110

kernel: keys: NULL pointer deref in the user-defined key type

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and kernel oops) via vectors related to a user-defined key and "updating a negative key into a fully instantiated key."

La función user_update security/keys/user_defined.c en el kernel de Linux v2.6 permite a usuarios locales provocar una denegación de servicio (desreferencia de puntero a NULL y fallo del kernel) a través de vectores relacionados con una clave definida por el usuario y la "actualización de una clave negativa en una clave completamente instanciada".

Potential vulnerabilities have been identified with HP Rapid Deployment Pack (RDP) or HP Insight Control Server Deployment. The vulnerabilities could be exploited remotely affecting confidentiality, integrity and availability. Revision 1 of this advisory.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-10-18 CVE Reserved
2012-01-27 CVE Published
2023-03-08 EPSS Updated
2024-08-07 CVE Updated
2024-08-07 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-264: Permissions, Privileges, and Access Controls
CWE-476: NULL Pointer Dereference

CAPEC

References (12)

URL	Tag	Source
http://secunia.com/advisories/47754	Third Party Advisory
http://www.openwall.com/lists/oss-security/2011/11/21/19	Mailing List
http://www.openwall.com/lists/oss-security/2011/11/22/5	Mailing List
http://www.openwall.com/lists/oss-security/2011/11/22/6	Mailing List
http://www.securityfocus.com/bid/50755	Vdb Entry

URL	Date	SRC
https://lkml.org/lkml/2011/11/15/363	2024-08-07

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=751297	2012-02-23

URL	Date	SRC
http://marc.info/?l=bugtraq&m=139447903326211&w=2	2023-02-13
http://www.ubuntu.com/usn/USN-1324-1	2023-02-13
http://www.ubuntu.com/usn/USN-1328-1	2023-02-13
http://www.ubuntu.com/usn/USN-1344-1	2023-02-13
https://access.redhat.com/security/cve/CVE-2011-4110	2012-02-23

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6 Search vendor "Linux" for product "Linux Kernel" and version "2.6"		-		Affected