{"id":"USN-5446-2","summary":"dpkg vulnerability","details":"USN-5446-1 fixed a vulnerability in dpkg. This update provides\nthe corresponding update for Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\n Max Justicz discovered that dpkg incorrectly handled unpacking certain\n source packages. If a user or an automated system were tricked into\n unpacking a specially crafted source package, a remote attacker could\n modify files outside the target unpack directory, leading to a denial of\n service or potentially gaining access to the system.\n","modified":"2026-05-20T16:03:19.121275969Z","published":"2022-05-30T15:29:17Z","related":["UBUNTU-CVE-2022-1664"],"upstream":["CVE-2022-1664","UBUNTU-CVE-2022-1664"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5446-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-1664"}],"affected":[{"package":{"name":"dpkg","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/dpkg?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.18.4ubuntu1.7+esm1"}]}],"versions":["1.18.2ubuntu5","1.18.3ubuntu1","1.18.4ubuntu1","1.18.4ubuntu1.1","1.18.4ubuntu1.2","1.18.4ubuntu1.3","1.18.4ubuntu1.4","1.18.4ubuntu1.5","1.18.4ubuntu1.6","1.18.4ubuntu1.7"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"dselect","binary_version":"1.18.4ubuntu1.7+esm1"},{"binary_name":"dpkg","binary_version":"1.18.4ubuntu1.7+esm1"},{"binary_name":"libdpkg-perl","binary_version":"1.18.4ubuntu1.7+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5446-2.json","cves_map":{"cves":[],"ecosystem":"Ubuntu:Pro:16.04:LTS"}}}],"schema_version":"1.7.5"}