CVE-2011-2184

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The key_replace_session_keyring function in security/keys/process_keys.c in the Linux kernel before 2.6.39.1 does not initialize a certain structure member, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a KEYCTL_SESSION_TO_PARENT argument to the keyctl function, a different vulnerability than CVE-2010-2960.

La función key_replace_session_keyring en security/keys/process_keys.c en el kernel de Linux anterior a v2.6.39.1 no inicializa un determinado miembro de una 'struct', lo que permite a usuarios locales causar una denegación de servicio (puntero a NULL y OOPS) o posiblemente tener un impacto no especificado a través del argumento KEYCTL_SESSION_TO_PARENT a la función keyctl. Se trata de una vulnerabilidad diferente a CVE-2010-2960.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-05-31 CVE Reserved
2011-09-06 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (9)

URL	Tag	Source
http://alt.swiecki.net/linux_kernel/sys_open-kmem_cache_alloc-2.6.39-rc4.txt	Broken Link
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f7285b5d631fd6096b11c6af0058ed3a2b30ef4e	X_refsource_confirm
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.1	Broken Link
https://lkml.org/lkml/2011/5/23/199	Mailing List
https://lkml.org/lkml/2011/5/24/502	Mailing List

URL	Date	SRC

URL	Date	SRC
http://securityreason.com/securityalert/8371	2023-02-13
http://www.openwall.com/lists/oss-security/2011/06/03/2	2023-02-13
http://www.openwall.com/lists/oss-security/2011/06/06/2	2023-02-13
https://lkml.org/lkml/2011/5/25/265	2023-02-13

URL	Date	SRC

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"				< 2.6.39.1 Search vendor "Linux" for product "Linux Kernel" and version " < 2.6.39.1"		-		Affected