{"id":"USN-5325-1","summary":"zsh vulnerabilities","details":"Sam Foxman discovered that Zsh incorrectly handled certain inputs.\nAn attacker could possibly use this issue to regain dropped privileges.\n(CVE-2019-20044)\n\nIt was discovered that Zsh incorrectly handled certain inputs.\nAn attacker could possibly use this issue to execute arbitrary code.\n(CVE-2021-45444)\n","modified":"2026-05-20T16:03:12.744236876Z","published":"2022-03-14T17:30:22Z","related":["UBUNTU-CVE-2019-20044","UBUNTU-CVE-2021-45444"],"upstream":["CVE-2019-20044","CVE-2021-45444","UBUNTU-CVE-2019-20044","UBUNTU-CVE-2021-45444"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5325-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-20044"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-45444"}],"affected":[{"package":{"name":"zsh","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/zsh?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.1.1-1ubuntu2.3+esm1"}]}],"versions":["5.1.1-1ubuntu1","5.1.1-1ubuntu2","5.1.1-1ubuntu2.1","5.1.1-1ubuntu2.2","5.1.1-1ubuntu2.3"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"5.1.1-1ubuntu2.3+esm1","binary_name":"zsh-static"},{"binary_version":"5.1.1-1ubuntu2.3+esm1","binary_name":"zsh-common"},{"binary_version":"5.1.1-1ubuntu2.3+esm1","binary_name":"zsh"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5325-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[]}}},{"package":{"name":"zsh","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/zsh?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.2-3ubuntu3.2"}]}],"versions":["5.2-5ubuntu1","5.4.2-3ubuntu1","5.4.2-3ubuntu2","5.4.2-3ubuntu3","5.4.2-3ubuntu3.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"5.4.2-3ubuntu3.2","binary_name":"zsh"},{"binary_version":"5.4.2-3ubuntu3.2","binary_name":"zsh-common"},{"binary_version":"5.4.2-3ubuntu3.2","binary_name":"zsh-static"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5325-1.json","cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2019-20044"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2021-45444"}]}}},{"package":{"name":"zsh","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/zsh?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8-3ubuntu1.1"}]}],"versions":["5.7.1-1ubuntu2","5.8-2ubuntu2","5.8-3ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"5.8-3ubuntu1.1","binary_name":"zsh"},{"binary_version":"5.8-3ubuntu1.1","binary_name":"zsh-common"},{"binary_version":"5.8-3ubuntu1.1","binary_name":"zsh-static"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5325-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2021-45444"}]}}}],"schema_version":"1.7.5"}