A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 12.4.9, watchOS 6.2.9, Security Update 2020-006 High Sierra, Security Update 2020-006 Mojave, iOS 14.2 and iPadOS 14.2, watchOS 5.3.9, macOS Catalina 10.15.7 Supplemental Update, macOS Catalina 10.15.7 Update. Processing a maliciously crafted font may lead to arbitrary code execution.
The product writes data past the end, or before the beginning, of the intended buffer.
| Link | Tags |
|---|---|
| https://support.apple.com/en-us/HT211931 | vendor advisory |
| https://support.apple.com/en-us/HT211928 | vendor advisory |
| https://support.apple.com/en-us/HT211929 | vendor advisory |
| https://support.apple.com/en-us/HT211940 | vendor advisory |
| https://support.apple.com/en-us/HT211944 | vendor advisory |
| https://support.apple.com/en-us/HT211945 | vendor advisory |
| https://support.apple.com/en-us/HT211946 | vendor advisory |
| https://support.apple.com/en-us/HT211947 | vendor advisory |
| http://seclists.org/fulldisclosure/2020/Dec/32 | third party advisory mailing list |
| http://packetstormsecurity.com/files/161294/Apple-Safari-Remote-Code-Execution.html | vdb entry third party advisory |