Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, Safari 12.1.1, iTunes for Windows 12.9.5, iCloud for Windows 7.12. Processing maliciously crafted web content may lead to arbitrary code execution.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
Link | Tags |
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https://support.apple.com/HT210118 | vendor advisory |
https://support.apple.com/HT210119 | vendor advisory |
https://support.apple.com/HT210120 | vendor advisory |
https://support.apple.com/HT210123 | vendor advisory |
https://support.apple.com/HT210124 | vendor advisory |
https://support.apple.com/HT210125 | vendor advisory |
https://support.apple.com/HT210212 | vendor advisory |