An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave. A malicious application may be able to execute arbitrary code with system privileges.
The product writes data past the end, or before the beginning, of the intended buffer.
Link | Tags |
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https://support.apple.com/en-us/HT212011 | vendor advisory |