OSV-2021-786 Heap-buffer-overflow in jxl::PerformAlphaWeightedAdd

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=34518 Crash type: Heap-buffer-overflow WRITE Crash state: jxl::PerformAlphaWeightedAdd jxl::PerformBlending jxl::ImageBlender::RectBlender::DoBlending...

PT-2021-28270

Name of the Vulnerable Software and Affected Versions: jxl affected versions not specified Description: A heap-buffer-overflow issue occurs in the jxl library, specifically in the PerformAlphaWeightedAdd and PerformBlending functions, which are called by ImageBlender::RectBlender::DoBlending. Thi...