Vulnerability identifier: #VU9341

Vulnerability risk: Low

CVSSv3.1: 3.3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-1086

CWE-ID: CWE-401

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
FreeBSD
Operating systems & Components / Operating system

Vendor: FreeBSD Foundation

Description

The vulnerability allows a local user to obtain potentially sensitive information.

The vulnerability exists due to an error in implementation of the ptrace(PT_LWPINFO) system call. A local user can use debugger to read portions of data from kernel.

Mitigation
Install update from vendor's repository:
https://security.FreeBSD.org/patches/SA-17:08/ptrace.patch
https://security.FreeBSD.org/patches/SA-17:08/ptrace.patch.asc

Vulnerable software versions

FreeBSD: 10.0 - 11.1

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External links
http://www.freebsd.org/security/advisories/FreeBSD-SA-17:08.ptrace.asc

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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.