Vulnerability identifier: #VU9782

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-284

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
OpenBSD
Operating systems & Components / Operating system

Vendor: OpenBSD

Description
The vulnerability allows a local attacker to bypass security restrictions on the target system.

The weakness exists due to insufficient security checks in the fktrace(2) processing tracing system call. A local attacker can make a specially crafted system call and bypass intended security restrictions.

Mitigation
Install update from vendor's website.

Vulnerable software versions

OpenBSD: 6.2

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External links
http://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/002_fktrace.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.