{"id":"UBUNTU-CVE-2022-28321","details":"The Linux-PAM package before 1.5.2-6.1 for openSUSE Tumbleweed allows authentication bypass for SSH logins. The pam_access.so module doesn't correctly restrict login if a user tries to connect from an IP address that is not resolvable via DNS. In such conditions, a user with denied access to a machine can still get access. NOTE: the relevance of this issue is largely limited to openSUSE Tumbleweed and openSUSE Factory; it does not affect Linux-PAM upstream.","modified":"2026-04-22T13:21:22.153906Z","published":"2022-09-19T22:15:00Z","related":["USN-5825-1","USN-5825-2"],"upstream":["CVE-2022-28321"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-28321"},{"type":"REPORT","url":"https://www.suse.com/security/cve/CVE-2022-28321.html"},{"type":"REPORT","url":"http://download.opensuse.org/source/distribution/openSUSE-current/repo/oss/src/"},{"type":"REPORT","url":"https://github.com/linux-pam/linux-pam/pull/447"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5825-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5825-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2022-28321"}],"affected":[{"package":{"name":"pam","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/pam@1.1.8-1ubuntu2.2+esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.8-1ubuntu2.2+esm1"}]}],"versions":["1.1.3-8ubuntu3","1.1.3-10ubuntu1","1.1.3-11ubuntu1","1.1.8-1ubuntu1","1.1.8-1ubuntu2","1.1.8-1ubuntu2.1","1.1.8-1ubuntu2.2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"libpam-cracklib","binary_version":"1.1.8-1ubuntu2.2+esm1"},{"binary_version":"1.1.8-1ubuntu2.2+esm1","binary_name":"libpam-modules"},{"binary_version":"1.1.8-1ubuntu2.2+esm1","binary_name":"libpam-modules-bin"},{"binary_name":"libpam-runtime","binary_version":"1.1.8-1ubuntu2.2+esm1"},{"binary_name":"libpam0g","binary_version":"1.1.8-1ubuntu2.2+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-28321.json"}},{"package":{"name":"pam","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/pam@1.1.8-3.2ubuntu2.3+esm2?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.8-3.2ubuntu2.3+esm2"}]}],"versions":["1.1.8-3.1ubuntu3","1.1.8-3.2ubuntu2","1.1.8-3.2ubuntu2.1","1.1.8-3.2ubuntu2.3","1.1.8-3.2ubuntu2.3+esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"libpam-cracklib","binary_version":"1.1.8-3.2ubuntu2.3+esm2"},{"binary_version":"1.1.8-3.2ubuntu2.3+esm2","binary_name":"libpam-modules"},{"binary_name":"libpam-modules-bin","binary_version":"1.1.8-3.2ubuntu2.3+esm2"},{"binary_name":"libpam-runtime","binary_version":"1.1.8-3.2ubuntu2.3+esm2"},{"binary_name":"libpam0g","binary_version":"1.1.8-3.2ubuntu2.3+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-28321.json"}},{"package":{"name":"pam","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/pam@1.1.8-3.6ubuntu2.18.04.4?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.8-3.6ubuntu2.18.04.4"}]}],"versions":["1.1.8-3.2ubuntu3","1.1.8-3.2ubuntu4","1.1.8-3.6ubuntu1","1.1.8-3.6ubuntu2","1.1.8-3.6ubuntu2.18.04.1","1.1.8-3.6ubuntu2.18.04.2","1.1.8-3.6ubuntu2.18.04.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.1.8-3.6ubuntu2.18.04.4","binary_name":"libpam-cracklib"},{"binary_name":"libpam-modules","binary_version":"1.1.8-3.6ubuntu2.18.04.4"},{"binary_name":"libpam-modules-bin","binary_version":"1.1.8-3.6ubuntu2.18.04.4"},{"binary_version":"1.1.8-3.6ubuntu2.18.04.4","binary_name":"libpam-runtime"},{"binary_name":"libpam0g","binary_version":"1.1.8-3.6ubuntu2.18.04.4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-28321.json"}},{"package":{"name":"pam","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/pam@1.3.1-5ubuntu4.4?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.1-5ubuntu4.4"}]}],"versions":["1.3.1-5ubuntu1","1.3.1-5ubuntu3","1.3.1-5ubuntu4","1.3.1-5ubuntu4.1","1.3.1-5ubuntu4.2","1.3.1-5ubuntu4.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libpam-cracklib","binary_version":"1.3.1-5ubuntu4.4"},{"binary_name":"libpam-modules","binary_version":"1.3.1-5ubuntu4.4"},{"binary_name":"libpam-modules-bin","binary_version":"1.3.1-5ubuntu4.4"},{"binary_name":"libpam-runtime","binary_version":"1.3.1-5ubuntu4.4"},{"binary_name":"libpam0g","binary_version":"1.3.1-5ubuntu4.4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-28321.json"}},{"package":{"name":"pam","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/pam@1.4.0-11ubuntu2.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.0-11ubuntu2.1"}]}],"versions":["1.3.1-5ubuntu11","1.4.0-10ubuntu1","1.4.0-10ubuntu2","1.4.0-11ubuntu1","1.4.0-11ubuntu2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libpam-cracklib","binary_version":"1.4.0-11ubuntu2.1"},{"binary_name":"libpam-modules","binary_version":"1.4.0-11ubuntu2.1"},{"binary_name":"libpam-modules-bin","binary_version":"1.4.0-11ubuntu2.1"},{"binary_version":"1.4.0-11ubuntu2.1","binary_name":"libpam-runtime"},{"binary_version":"1.4.0-11ubuntu2.1","binary_name":"libpam0g"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-28321.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"negligible"}]}