#VU15598 Memory corruption in macOS - CVE-2018-4420

Vulnerability identifier: #VU15598

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-2018-4420

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
macOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists due to boundary error in Kernel component when handling malicious input. A local attacker can run a specially crafted application, trigger memory corruption and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update to version 10.14.1.

Vulnerable software versions

macOS: 10.12.6 16G29 - 10.14 18A391

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External links
https://support.apple.com/en-us/HT209193

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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.