Vulnerability Monitor

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CVE-2011-1013

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.

Published

2011-05-09T19:55:02.257

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.2 (HIGH)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 2.6.38	Yes
Operating System	openbsd	openbsd	≤ 4.8	Yes

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1922756124ddd53846877416d92ba4a802bc658f ([email protected])
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38 Release Notes, Vendor Advisory ([email protected])
http://www.openbsd.org/cgi-bin/cvsweb/src/sys/dev/pci/drm/drm_irq.c Patch, Third Party Advisory ([email protected])
http://www.openbsd.org/cgi-bin/cvsweb/src/sys/dev/pci/drm/drm_irq.c.diff?r1=1.41%3Br2=1.42%3Bf=h ([email protected])
http://www.securityfocus.com/bid/47639 Third Party Advisory, VDB Entry ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=679925 Issue Tracking, Patch ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/67199 Third Party Advisory, VDB Entry ([email protected])
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1922756124ddd53846877416d92ba4a802bc658f (af854a3a-2127-422b-91ae-364da2661108)
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38 Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openbsd.org/cgi-bin/cvsweb/src/sys/dev/pci/drm/drm_irq.c Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openbsd.org/cgi-bin/cvsweb/src/sys/dev/pci/drm/drm_irq.c.diff?r1=1.41%3Br2=1.42%3Bf=h (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/47639 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=679925 Issue Tracking, Patch (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/67199 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)