#VU58856 Input validation error in macOS - CVE-2021-30945

Vulnerability identifier: #VU58856

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-30945

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
macOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of user-supplied input in Crash Reporter. A local user can pass specially crafted input to the system and escalate privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

macOS: 12.0 21A344 - 12.0.1 21A559

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External links
https://support.apple.com/en-us/HT212978

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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.