In CPDF_RenderStatus::LoadSMask of cpdf_renderstatus.cpp, there is a possible memory corruption due to a use-after free. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-149481220
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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://source.android.com/security/bulletin/pixel/2020-12-01 | vendor advisory |