Vulnerability identifier: #VU59273

Vulnerability risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-35000

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 an error within the implementation of multicast routing in OpenBSD kernel. A local user can run a specially crafted program to gain access to sensitive kernel memory.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

OpenBSD: 7.0

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External links
http://www.zerodayinitiative.com/advisories/ZDI-22-012/

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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.