Vulnerability identifier: #VU18387

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: N/A

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
NetBSD
Operating systems & Components / Operating system

Vendor: NetBSD Foundation, Inc

Description

The vulnerability allows a local user to execute arbitrary code on the target system withe elevated privileges.

The vulnerability exists due to a boundary error when validating arguments in mq_send(3) system call. A local unprivileged user can create a specially crafted application, run it on the affected system, trigger memory corruption and overwrite kernel memory.

Successful exploitation of this vulnerability may allow a local user to execute arbitrary code as root.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

NetBSD: 7.0.2 - 8.0

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External links
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2019-002.txt.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.