An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iCloud for Windows 7.12, tvOS 12.3, iTunes 12.9.5 for Windows, macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra, iOS 12.3. Processing a maliciously crafted font may result in the disclosure of process memory.

References

• https://nvd.nist.gov/vuln/detail/CVE-2019-8582
• https://support.apple.com/en-us/HT210118
• https://support.apple.com/en-us/HT210119
• https://support.apple.com/en-us/HT210120
• https://support.apple.com/en-us/HT210124
• https://support.apple.com/en-us/HT210125