OSV-2018-177 Heap-buffer-overflow in prefixcmp

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11007 Crash type: Heap-buffer-overflow READ 1 Crash state: prefixcmp gitprefixcmp gitcommitparseraw...

OSV-2018-99 Heap-buffer-overflow in git__strntol64

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11173 Crash type: Heap-buffer-overflow READ 1 Crash state: gitstrntol64 gitsignatureparse gitcommitparseraw...