Vulnerability CVE-2013-6282
Published: 2013-11-20   Modified: 2013-11-21

Description:
The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addresses, which allows attackers to read or modify the contents of arbitrary kernel memory locations via a crafted application, as exploited in the wild against Android devices in October and November 2013.

See advisories in our WLB2 database:
Topic
Author
Date
High
Android get_user/put_user Exploit
timwr
27.12.2016

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Linux -> Linux kernel 

 References:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8404663f81d212918ff85f493649a7991209fa04
http://www.codeaurora.org/projects/security-advisories/missing-access-checks-putusergetuser-kernel-api-cve-2013-6282
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.5
http://www.openwall.com/lists/oss-security/2013/11/14/11
http://www.securityfocus.com/bid/63734
http://www.ubuntu.com/usn/USN-2067-1
https://github.com/torvalds/linux/commit/8404663f81d212918ff85f493649a7991209fa04
https://www.exploit-db.com/exploits/40975/
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