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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:Feb 22, 2011
    Last Modified:Apr 11, 2025
    EPS:May 9, 2011
    EPSS Score:0.00096
    CVSS Score:7.2

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Openbsd
    Product
    Openbsd
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Mrg

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=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%3Br2=1.42%3Bf=h
    http://www.securityfocus.com/bid/47639
    https://bugzilla.redhat.com/show_bug.cgi?id=679925
    https://exchange.xforce.ibmcloud.com/vulnerabilities/67199
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=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%3Br2=1.42%3Bf=h
    http://www.securityfocus.com/bid/47639
    https://bugzilla.redhat.com/show_bug.cgi?id=679925
    https://exchange.xforce.ibmcloud.com/vulnerabilities/67199

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High