Main Vulnerability Database Vulnerabilities #VU15613

Improper input validation in macOS - CVE-2018-4400

Published: October 31, 2018

Vulnerability identifier: #VU15613

CSH Severity: Low

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-4400

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

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

The weakness exists due to an error in Security component when processing a malicious input. A remote attacker can supply a specially crafted S/MIME signed message and cause the service to crash.

Affected software

macOS
watchOS
Apple iOS

How to mitigate CVE-2018-4400

Update to version 10.14.1.

macOS - update to 10.14.1 18B75
watchOS - update to 5.1
Apple iOS - update to 12.1 16B92

External References

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

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