Vulnerability identifier: #VU10659

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-4124

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
macOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to heap corruption when handling malicious input. A remote attacker can send a specially crafted Telugu character in a message, trigger a memory corruption error in the CoreText component and cause the application to crash.

Mitigation
Update to version 10.13.3.

Vulnerable software versions

macOS: 10.13 17A365 - 10.13.2 17C88

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External links
http://support.apple.com/en-us/HT208535

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.