Input validation error in Linux kernel

1) Input validation error

EUVDB-ID: #VU45289

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2011-1016

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The Radeon GPU drivers in the Linux kernel before 2.6.38-rc5 do not properly validate data related to the AA resolve registers, which allows local users to write to arbitrary memory locations associated with (1) Video RAM (aka VRAM) or (2) the Graphics Translation Table (GTT) via crafted values.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 2.6.0 - 2.6.38

External links

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fff1ce4dc6113b6fdc4e3a815ca5fd229408f8ef
http://openwall.com/lists/oss-security/2011/02/24/11
http://openwall.com/lists/oss-security/2011/02/24/3
http://openwall.com/lists/oss-security/2011/02/25/4
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.38-rc5
http://www.securityfocus.com/bid/46557
http://bugzilla.redhat.com/show_bug.cgi?id=680000
http://exchange.xforce.ibmcloud.com/vulnerabilities/65691

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.