{"id":"UBUNTU-CVE-2019-1000020","details":"libarchive version commit 5a98dcf8a86364b3c2c469c85b93647dfb139961 onwards (version v2.8.0 onwards) contains a CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in ISO9660 parser, archive_read_support_format_iso9660.c, read_CE()/parse_rockridge() that can result in DoS by infinite loop. This attack appears to be exploitable via the victim opening a specially crafted ISO9660 file.","modified":"2026-01-30T02:08:22.134724Z","published":"2019-02-04T00:00:00Z","related":["USN-3884-1"],"upstream":["CVE-2019-1000020"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-1000020"},{"type":"REPORT","url":"https://github.com/libarchive/libarchive/pull/1120"},{"type":"REPORT","url":"https://github.com/libarchive/libarchive/pull/1120/commits/8312eaa576014cd9b965012af51bc1f967b12423"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3884-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-1000020"}],"affected":[{"package":{"name":"libarchive","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libarchive@3.1.2-7ubuntu2.8?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.2-7ubuntu2.8"}]}],"versions":["3.1.2-5ubuntu1","3.1.2-7ubuntu1","3.1.2-7ubuntu2","3.1.2-7ubuntu2.1","3.1.2-7ubuntu2.2","3.1.2-7ubuntu2.3","3.1.2-7ubuntu2.4","3.1.2-7ubuntu2.6","3.1.2-7ubuntu2.7"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3.1.2-7ubuntu2.8","binary_name":"bsdcpio"},{"binary_version":"3.1.2-7ubuntu2.8","binary_name":"bsdtar"},{"binary_version":"3.1.2-7ubuntu2.8","binary_name":"libarchive-dev"},{"binary_version":"3.1.2-7ubuntu2.8","binary_name":"libarchive13"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-1000020.json"}},{"package":{"name":"libarchive","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libarchive@3.1.2-11ubuntu0.16.04.6?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.2-11ubuntu0.16.04.6"}]}],"versions":["3.1.2-11build1","3.1.2-11ubuntu0.16.04.1","3.1.2-11ubuntu0.16.04.2","3.1.2-11ubuntu0.16.04.3","3.1.2-11ubuntu0.16.04.4","3.1.2-11ubuntu0.16.04.5"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3.1.2-11ubuntu0.16.04.6","binary_name":"bsdcpio"},{"binary_version":"3.1.2-11ubuntu0.16.04.6","binary_name":"bsdtar"},{"binary_version":"3.1.2-11ubuntu0.16.04.6","binary_name":"libarchive-dev"},{"binary_version":"3.1.2-11ubuntu0.16.04.6","binary_name":"libarchive13"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-1000020.json"}},{"package":{"name":"libarchive","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libarchive@3.2.2-3.1ubuntu0.3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.2-3.1ubuntu0.3"}]}],"versions":["3.2.2-3.1","3.2.2-3.1ubuntu0.1","3.2.2-3.1ubuntu0.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3.2.2-3.1ubuntu0.3","binary_name":"bsdcpio"},{"binary_version":"3.2.2-3.1ubuntu0.3","binary_name":"bsdtar"},{"binary_version":"3.2.2-3.1ubuntu0.3","binary_name":"libarchive-dev"},{"binary_version":"3.2.2-3.1ubuntu0.3","binary_name":"libarchive-tools"},{"binary_version":"3.2.2-3.1ubuntu0.3","binary_name":"libarchive13"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-1000020.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}