A local user may be able to cause unexpected system termination or read kernel memory. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina. An out-of-bounds read issue was addressed by removing the vulnerable code.
The product reads data past the end, or before the beginning, of the intended buffer.
Link | Tags |
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https://support.apple.com/en-us/HT212529 | release notes vendor advisory |
https://support.apple.com/en-us/HT212530 | release notes vendor advisory |