A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-004 Catalina. Processing a maliciously crafted image may lead to arbitrary code execution.
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.
| Link | Tags |
|---|---|
| https://support.apple.com/en-us/HT212601 | release notes vendor advisory |
| https://support.apple.com/en-us/HT212602 | release notes vendor advisory |
| https://support.apple.com/en-us/HT212605 | release notes vendor advisory |
| https://support.apple.com/en-us/HT212600 | release notes vendor advisory |
| https://support.apple.com/en-us/HT212604 | release notes vendor advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-22-353/ | vdb entry third party advisory |