CVE-2011-1013

kernel: drm_modeset_ctl signedness issue

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Integer signedness error in the drm_modeset_ctl function in (1) drivers/gpu/drm/drm_irq.c in the Direct Rendering Manager (DRM) subsystem in the Linux kernel before 2.6.38 and (2) sys/dev/pci/drm/drm_irq.c in the kernel in OpenBSD before 4.9 allows local users to trigger out-of-bounds write operations, and consequently cause a denial of service (system crash) or possibly have unspecified other impact, via a crafted num_crtcs (aka vb_num) structure member in an ioctl argument.

Error de enteros sin signo en Función drm_modeset_ctl en(1) drivers /gpu/drm/drm_irq.c del subsistema Direct Rendering Manager del kernel de Linux con anterioridad a v2.6.38 y (2) sys/dev/pci/drm/drm_irq.c en el kernel de OpenBSD con anterioridad a v4.9 permite a los usuarios locales provocar una salida de los limites en las operaciones de escritura, y por lo tanto provocar una denegación de servicio ( caída del sistema ) o, posiblemente,tener un impacto no especificado, a través de un miembro de la estructura num_crtcs ( vb_num alias ) manipulado en un argumento ioctl.

*Credits: N/A

CVSS Scores

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

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-02-14 CVE Reserved
2011-05-09 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (8)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1922756124ddd53846877416d92ba4a802bc658f	X_refsource_confirm
http://www.openbsd.org/cgi-bin/cvsweb/src/sys/dev/pci/drm/drm_irq.c.diff?r1=1.41%3Br2=1.42%3Bf=h	X_refsource_confirm
http://www.securityfocus.com/bid/47639	Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/67199	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://www.openbsd.org/cgi-bin/cvsweb/src/sys/dev/pci/drm/drm_irq.c	2023-02-13
https://bugzilla.redhat.com/show_bug.cgi?id=679925	2011-05-10

URL	Date	SRC
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38	2023-02-13
https://access.redhat.com/security/cve/CVE-2011-1013	2011-05-10

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 Search vendor "Linux" for product "Linux Kernel" and version " < 2.6.38"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				<= 4.8 Search vendor "Openbsd" for product "Openbsd" and version " <= 4.8"		-		Affected