archive_read_support_format_rar5.c in libarchive before 3.4.2 attempts to unpack a RAR5 file with an invalid or corrupted header (such as a header size of zero), leading to a SIGSEGV or possibly unspecified other impact. CREATE(Triage):(User=admin) CVE-2020-9308 (https://nvd.nist.gov/vuln/detail/CVE-2020-9308)
