CVE-2011-2022

kernel: agp: insufficient pg_start parameter checking in AGPIOC_BIND and AGPIOC_UNBIND ioctls

Severity Score

6.9

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The agp_generic_remove_memory function in drivers/char/agp/generic.c in the Linux kernel before 2.6.38.5 does not validate a certain start parameter, which allows local users to gain privileges or cause a denial of service (system crash) via a crafted AGPIOC_UNBIND agp_ioctl ioctl call, a different vulnerability than CVE-2011-1745.

La función agp_generic_remove_memory en los drivers /char/agp/generic.c del kernel de Linux con anterioridad a v2.6.38.5 no valida un parámetro de inicio determinado, lo que permite a usuarios locales conseguir privilegios o causar una denegación de servicio ( fallo del sistema ) a través de una llamada manipulada AGPIOC_UNBIND agp_ioctl ioctl, es una vulnerabilidad diferente de CVE -2011- 1745.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Attack Vector

Local

Attack Complexity

Medium

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

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

CWE

CWE-20: Improper Input Validation

CAPEC

References (9)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=194b3da873fd334ef183806db751473512af29ce	X_refsource_confirm
http://www.securityfocus.com/bid/47843	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://openwall.com/lists/oss-security/2011/04/21/4	2023-11-07
http://openwall.com/lists/oss-security/2011/04/22/7	2023-11-07
https://bugzilla.redhat.com/show_bug.cgi?id=698996	2011-10-05
https://lkml.org/lkml/2011/4/14/293	2023-11-07

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2011-0927.html	2023-11-07
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38.5	2023-11-07
https://access.redhat.com/security/cve/CVE-2011-2022	2011-10-05

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"				< 2.6.38.5 Search vendor "Linux" for product "Linux Kernel" and version " < 2.6.38.5"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				5.0 Search vendor "Redhat" for product "Enterprise Linux" and version "5.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Aus Search vendor "Redhat" for product "Enterprise Linux Aus"				5.6 Search vendor "Redhat" for product "Enterprise Linux Aus" and version "5.6"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				5.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "5.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Eus Search vendor "Redhat" for product "Enterprise Linux Eus"				5.6 Search vendor "Redhat" for product "Enterprise Linux Eus" and version "5.6"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				5.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "5.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				5.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "5.0"		-		Affected