Vulnerability identifier: #VU14517

Vulnerability risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-200

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
OpenBSD
Operating systems & Components / Operating system

Vendor: OpenBSD

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to absent security check when saving user's FPU in vm_machdep.c file. A local user can read FPU state of another userland process. 

Mitigation
Install update from vendor's website.

Vulnerable software versions

OpenBSD: 6.2 - 6.3

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External links
http://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/022_fpufork.patch.sig

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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.