Vulnerability identifier: #VU9959

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-2017-15868

CWE-ID: CWE-264

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 elevate privileges on the system.

The vulnerability exists due to abet check of l2cap socket availability in the bnep_add_connection() function in net/bluetooth/bnep/core.c. A local user can execute arbitrary code with elevated privileges.

Mitigation
Update to version 3.19.

Vulnerable software versions

Linux kernel: 3.18 - 3.18.72

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External links
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=71bb99a02b32b4cc4265118e85...
http://github.com/torvalds/linux/commit/71bb99a02b32b4cc4265118e85f6035ca72923f0
http://source.android.com/security/bulletin/pixel/2017-12-01

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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.