Input validation error in Apple iOS and watchOS - CVE-2019-8664

 

Input validation error in Apple iOS and watchOS - CVE-2019-8664

Published: July 9, 2019


Vulnerability identifier: #VU19059
CSH Severity: Medium
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-2019-8664
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an issue with a "IMBalloonPluginDataSource individualPreviewSummary" method in IMCore, which can throw an NSException. A remote attacker can send a specially crafted IMessage to cause a denial of service condition.


Affected software

Apple iOS
watchOS

How to mitigate CVE-2019-8664

Install updates from vendor's website.

Apple iOS - update to 12.3 16F156
watchOS - update to 5.2.1

External References

Related Security Bulletins