CVE-2013-4511 Information

Description

Multiple integer overflows in Alchemy LCD frame-buffer drivers in the Linux kernel before 3.12 allow local users to create a read-write memory mapping for the entirety of kernel memory and consequently gain privileges via crafted mmap operations related to the (1) au1100fb_fb_mmap function in drivers/video/au1100fb.c and the (2) au1200fb_fb_mmap function in drivers/video/au1200fb.c.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7314e613d5ff9f0934f7a0f74ed7973b903315d1 http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00003.html http://lists.opensuse.org/opensuse-updates/2014-02/msg00045.html http://www.openwall.com/lists/oss-security/2013/11/04/22 http://www.ubuntu.com/usn/USN-2036-1 http://www.ubuntu.com/usn/USN-2037-1 http://www.ubuntu.com/usn/USN-2066-1 http://www.ubuntu.com/usn/USN-2067-1 http://www.ubuntu.com/usn/USN-2068-1 http://www.ubuntu.com/usn/USN-2069-1 http://www.ubuntu.com/usn/USN-2070-1 http://www.ubuntu.com/usn/USN-2071-1 http://www.ubuntu.com/usn/USN-2072-1 http://www.ubuntu.com/usn/USN-2073-1 http://www.ubuntu.com/usn/USN-2074-1 http://www.ubuntu.com/usn/USN-2075-1 http://www.ubuntu.com/usn/USN-2076-1 https://github.com/torvalds/linux/commit/7314e613d5ff9f0934f7a0f74ed7973b903315d1 https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.12.bz2