6.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
kernel is vulnerable to information disclosure attacks. The vulnerability exists through an 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.
forum.xda-developers.com/showthread.php?t=2255491
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b4cbb197c7e7a68dbad0d491242e3ca67420c13e
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fc9bbca8f650e5f738af8806317c0a041a48ae4a
kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
marc.info/?l=linux-kernel&m=136616837923938&w=2
rhn.redhat.com/errata/RHSA-2015-0695.html
rhn.redhat.com/errata/RHSA-2015-0782.html
rhn.redhat.com/errata/RHSA-2015-0803.html
www.droid-life.com/2013/04/09/root-method-released-for-droid-razr-hd-running-android-4-1-2-other-devices-too/
www.droidrzr.com/index.php/topic/15208-root-motochopper-yet-another-android-root-exploit/
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9
www.mandriva.com/security/advisories?name=MDVSA-2013:176
www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
www.securityfocus.com/bid/59264
access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html-single/6.6_Release_Notes/index.html
access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.6_Technical_Notes/kernel.html#RHSA-2014-1392
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=1010882
bugzilla.redhat.com/show_bug.cgi?id=1027480
bugzilla.redhat.com/show_bug.cgi?id=1030411
bugzilla.redhat.com/show_bug.cgi?id=1031488
bugzilla.redhat.com/show_bug.cgi?id=1036972
bugzilla.redhat.com/show_bug.cgi?id=1044438
bugzilla.redhat.com/show_bug.cgi?id=1059496
bugzilla.redhat.com/show_bug.cgi?id=1063836
bugzilla.redhat.com/show_bug.cgi?id=1065304
bugzilla.redhat.com/show_bug.cgi?id=1069028
bugzilla.redhat.com/show_bug.cgi?id=1072373
bugzilla.redhat.com/show_bug.cgi?id=1077463
bugzilla.redhat.com/show_bug.cgi?id=1090423
bugzilla.redhat.com/show_bug.cgi?id=1095627
bugzilla.redhat.com/show_bug.cgi?id=1100523
bugzilla.redhat.com/show_bug.cgi?id=1118123
bugzilla.redhat.com/show_bug.cgi?id=1124351
bugzilla.redhat.com/show_bug.cgi?id=1127231
bugzilla.redhat.com/show_bug.cgi?id=739866
bugzilla.redhat.com/show_bug.cgi?id=786463
bugzilla.redhat.com/show_bug.cgi?id=889471
bugzilla.redhat.com/show_bug.cgi?id=915862
bugzilla.redhat.com/show_bug.cgi?id=997651
bugzilla.redhat.com/show_bug.cgi?id=998024
github.com/torvalds/linux/commit/b4cbb197c7e7a68dbad0d491242e3ca67420c13e
github.com/torvalds/linux/commit/fc9bbca8f650e5f738af8806317c0a041a48ae4a
rhn.redhat.com/errata/RHSA-2014-1392.html