CVE-2022-31796 Information

Description

libjpeg 1.63 has a heap-based buffer over-read in HierarchicalBitmapRequester::FetchRegion in hierarchicalbitmaprequester.cpp because the MCU size can be different between allocation and use.

Reference

https://github.com/thorfdbg/libjpeg/issues/71 https://github.com/thorfdbg/libjpeg/commit/187035b9726710b4fe11d565c7808975c930895d