Time-of-check Time-of-use (TOCTOU) Race Condition in Linux kernel

1) Time-of-check Time-of-use (TOCTOU) Race Condition

EUVDB-ID: #VU39081

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-2017-0331

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Exploit availability: No

Description

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

An elevation of privilege vulnerability in the NVIDIA video driver could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as Critical due to the possibility of a local permanent device compromise, which may require reflashing the operating system to repair the device. Product: Android. Versions: Kernel 3.10. Android ID: A-34113000. References: N-CVE-2017-0331.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 3.10

External links

http://nvidia.custhelp.com/app/answers/detail/a_id/4561
http://www.securityfocus.com/bid/98150
http://source.android.com/security/bulletin/2017-05-01

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.