OSV-2020-1857 Heap-buffer-overflow in WelsDec::WelsDecodeMbCabacPSlice

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25973 Crash type: Heap-buffer-overflow WRITE 16 Crash state: WelsDec::WelsDecodeMbCabacPSlice WelsDec::WelsDecodeSlice WelsDec::DecodeCurrentAccessUnit...

openh264:decoder_fuzzer: Heap-buffer-overflow in WelsDec::WelsDecodeMbCabacPSlice

Project: https://github.com/cisco/openh264.git Detailed Report: https://oss-fuzz.com/testcase?key=5730626752479232 Project: openh264 Fuzzing Engine: afl Fuzz Target: decoderfuzzer Job Type: aflasanopenh264 Platform Id: linux Crash Type: Heap-buffer-overflow WRITE 16 Crash Address: 0x61800000379b...