High severity7.8CISA KEVNVD Advisory· Published Apr 13, 2013· Updated Jun 16, 2026
CVE-2013-2596
CVE-2013-2596
Description
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.
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Affected products
3- Range: <3.8.9
Patches
Vulnerability mechanics
References
17- marc.infonvdMailing ListPatchThird Party Advisory
- www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlnvdPatchThird Party Advisory
- github.com/torvalds/linux/commit/b4cbb197c7e7a68dbad0d491242e3ca67420c13envdPatch
- forum.xda-developers.com/showthread.phpnvdExploit
- www.droid-life.com/2013/04/09/root-method-released-for-droid-razr-hd-running-android-4-1-2-other-devices-too/nvdExploitIssue TrackingThird Party Advisory
- www.droidrzr.com/index.php/topic/15208-root-motochopper-yet-another-android-root-exploit/nvdExploitIssue Tracking
- github.com/torvalds/linux/commit/fc9bbca8f650e5f738af8806317c0a041a48ae4anvdExploitPatch
- kb.juniper.net/InfoCenter/indexnvdThird Party Advisory
- rhn.redhat.com/errata/RHSA-2015-0695.htmlnvdThird Party Advisory
- rhn.redhat.com/errata/RHSA-2015-0782.htmlnvdThird Party Advisory
- rhn.redhat.com/errata/RHSA-2015-0803.htmlnvdThird Party Advisory
- www.securityfocus.com/bid/59264nvdBroken LinkThird Party AdvisoryVDB Entry
- git.kernel.orgnvdBroken Link
- git.kernel.orgnvdBroken Link
- www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9nvdMailing ListRelease Notes
- www.mandriva.com/security/advisoriesnvdBroken Link
- www.cisa.gov/known-exploited-vulnerabilities-catalognvdUS Government Resource
News mentions
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