CVE-2013-2596

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    CVE-2013-2596

    Published: 13 Apr 2013Last Modified: 10 Apr 2026

    Summary:

    Details: Integer overflow in the fb_mmap function in drivers/video/fbmem.c in the Linux kernel before 3.8.9, as used in a certain Motorola build of Android 4.1.2 and other products, allows local users to create a read-write memory mapping for the entirety of kernel memory, and consequently gain privileges, via crafted /dev/graphics/fb0 mmap2 system calls, as demonstrated by the Motochopper pwn program.

    References: http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761, http://marc.info/?l=linux-kernel&m=136616837923938&w=2, http://rhn.redhat.com/errata/RHSA-2015-0695.html, http://rhn.redhat.com/errata/RHSA-2015-0782.html, http://rhn.redhat.com/errata/RHSA-2015-0803.html, http://www.droid-life.com/2013/04/09/root-method-released-for-droid-razr-hd-running-android-4-1-2-other-devices-too/, http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9, http://www.mandriva.com/security/advisories?name=MDVSA-2013:176, http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html, http://www.securityfocus.com/bid/59264, http://marc.info/?l=linux-kernel&m=136616837923938&w=2, http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9, http://forum.xda-developers.com/showthread.php?t=2255491, http://www.droid-life.com/2013/04/09/root-method-released-for-droid-razr-hd-running-android-4-1-2-other-devices-too/, http://www.droidrzr.com/index.php/topic/15208-root-motochopper-yet-another-android-root-exploit/, https://github.com/torvalds/linux/commit/fc9bbca8f650e5f738af8806317c0a041a48ae4a, http://marc.info/?l=linux-kernel&m=136616837923938&w=2, http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html, https://github.com/torvalds/linux/commit/b4cbb197c7e7a68dbad0d491242e3ca67420c13e, https://github.com/torvalds/linux/commit/fc9bbca8f650e5f738af8806317c0a041a48ae4a, http://www.droid-life.com/2013/04/09/root-method-released-for-droid-razr-hd-running-android-4-1-2-other-devices-too/, http://www.droidrzr.com/index.php/topic/15208-root-motochopper-yet-another-android-root-exploit/, http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b4cbb197c7e7a68dbad0d491242e3ca67420c13e, http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fc9bbca8f650e5f738af8806317c0a041a48ae4a, http://www.securityfocus.com/bid/59264

    Affected packages

    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