OSV-2023-1356 Heap-buffer-overflow in rawspeed::DngDecoder::parseWhiteBalance

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=65309 Crash type: Heap-buffer-overflow READ 4 Crash state: rawspeed::DngDecoder::parseWhiteBalance rawspeed::DngDecoder::decodeMetaDataInternal rawspeed::RawDecoder::decodeMetaData...