QEMU 4.1.0 has a memory leak in zrle_compress_data in ui/vnc-enc-zrle.c during a VNC disconnect operation because libz is misused, resulting in a situation where memory allocated in deflateInit2 is not freed in deflateEnd. CREATE(Triage):(User=admin) CVE-2019-20382 (https://nvd.nist.gov/vuln/detail/CVE-2019-20382)