Vulnerability identifier: #VU15626

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: CVE-2018-4423

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 dyld component when handling malicious input. A local attacker can run a specially crafted application, trigger memory corruption and gain elevated privileges.

Mitigation
Update to version 10.14.1.

Vulnerable software versions

macOS: 10.13.6 17G66, 10.12.6 16G29, 10.14 18A391

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External links
http://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.