Vulnerability identifier: #VU9606

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-12146

CWE-ID: CWE-362

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description
The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition between a read operation and a store operation that involve different overrides in driver_override implementation in drivers/base/platform.c. A local user can execute arbitrary code on the target system with elevated privileges.

Mitigation
Update to version 4.12.1

Vulnerable software versions

Linux kernel: 4.12

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External links
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.1

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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