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CVE
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CVE-2011-1013

Date: (C)2011-05-09   (M)2017-11-18 


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.

CVSS Score: 7.2Access Vector: LOCAL
Exploit Score: 3.9Access Complexity: LOW
Impact Score: 10.0Authentication: NONE
 Confidentiality: COMPLETE
 Integrity: COMPLETE
 Availability: COMPLETE





Reference:
BID-47639
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1922756124ddd53846877416d92ba4a802bc658f
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38
http://www.openbsd.org/cgi-bin/cvsweb/src/sys/dev/pci/drm/drm_irq.c
http://www.openbsd.org/cgi-bin/cvsweb/src/sys/dev/pci/drm/drm_irq.c.diff?r1=1.41;r2=1.42;f=h
https://bugzilla.redhat.com/show_bug.cgi?id=679925
kernel-drmioctl-priv-escalation(67199)

CPE    694
cpe:/o:openbsd:openbsd:4.7
cpe:/o:openbsd:openbsd:4.6
cpe:/o:openbsd:openbsd:4.8
cpe:/o:openbsd:openbsd:4.3
...
CWE    1
CWE-189
OVAL    11
oval:org.secpod.oval:def:102716
oval:org.secpod.oval:def:500000
oval:org.secpod.oval:def:700550
oval:org.secpod.oval:def:700569
...

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