{"id":"UBUNTU-CVE-2021-27345","details":"A null pointer dereference was discovered in ucompthread in stream.c in Irzip 0.631 which allows attackers to cause a denial of service (DOS) via a crafted compressed file.","modified":"2026-03-13T16:48:49.648220Z","published":"2021-06-10T16:15:00Z","related":["USN-5840-1"],"upstream":["CVE-2021-27345"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-27345"},{"type":"REPORT","url":"https://github.com/ckolivas/lrzip/issues/164"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5840-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-27345"}],"affected":[{"package":{"name":"lrzip","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/lrzip@0.616-1ubuntu0.1~esm2?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.608-2","0.616-1","0.616-1ubuntu0.1~esm","0.616-1ubuntu0.1~esm1","0.616-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"lrzip","binary_version":"0.616-1ubuntu0.1~esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27345.json"}},{"package":{"name":"lrzip","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/lrzip@0.631-1+deb9u3build0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.631-1+deb9u3build0.18.04.1"}]}],"versions":["0.631-1","0.631-1+deb9u1build0.18.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"lrzip","binary_version":"0.631-1+deb9u3build0.18.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27345.json"}},{"package":{"name":"lrzip","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/lrzip@0.631+git180528-1+deb10u1build0.20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.631+git180528-1+deb10u1build0.20.04.1"}]}],"versions":["0.631+git180528-1","0.631+git180528-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"lrzip","binary_version":"0.631+git180528-1+deb10u1build0.20.04.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27345.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}