CVE-2011-1013

Public on

Last Modified: UTC

Description

The CVE Program describes this issue as:

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.

Statement

This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 4, 5 as they did not include the affected functionality. A future update in Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG may address this flaw.

This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 4, 5 as they did not include the affected functionality. A future update in Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG may address this flaw.

Additional information

  • Bugzilla 679925: kernel: drm_modeset_ctl signedness issue
  • FAQ: Frequently asked questions about CVE-2011-1013

Common Vulnerability Scoring System (CVSS) Score Details

Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

CVSS v2 Score Breakdown
Red HatNVD

CVSS v2 Base Score

6.9

7.2

Attack Vector

Local

Local

Access Complexity

Medium

Low

Authentication

None

None

Confidentiality Impact

Complete

Complete

Integrity Impact

Complete

Complete

Availability Impact

Complete

Complete

CVSS v2 Vector

Red Hat: AV:L/AC:M/Au:N/C:C/I:C/A:C

NVD: AV:L/AC:L/Au:N/C:C/I:C/A:C

Frequently Asked Questions

Why is Red Hat's CVSS v3 score or Impact different from other vendors?

My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?

What can I do if my product is listed as "Will not fix"?

What can I do if my product is listed as "Fix deferred"?

What is a mitigation?

I have a Red Hat product but it is not in the above list, is it affected?

Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?

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