Vulnerability CVE-2013-4511
Published: 2013-11-12

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.

See advisories in our WLB2 database:
Topic
Author
Date
High
Linux Kernel Multiple Security fixes
Nico
04.11.2013

Type:

CWE-189

 (Numeric Errors)

CVSS2 => (AV:L/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.9/10
10/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Linux -> Linux kernel 

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