libarchive contains an out-of-bounds read vulnerability in 7zip decompression, archivereadsupportformat7zip.c, header_bytes() that can result in a crash (denial of service). This attack appears to be exploitable via the victim opening a specially crafted 7zip file (CVE-2019-1000019).
libarchive contains an infinite loop vulnerability in the ISO9660 parser, archivereadsupportformatiso9660.c, readCE()/parserockridge() that can result in DoS by infinite loop. This attack appears to be exploitable via the victim opening a specially crafted ISO9660 file (CVE-2019-1000020).