{"id":"USN-5825-2","summary":"pam regressions","details":"USN-5825-1 fixed vulnerabilities in PAM. Unfortunately that update was\nincomplete and could introduce a regression. This update fixes the problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n It was discovered that PAM did not correctly restrict login from an IP\n address that is not resolvable via DNS. An attacker could possibly use this\n issue to bypass authentication.\n","modified":"2026-04-22T10:31:17.738213Z","published":"2023-02-06T03:06:11Z","related":["UBUNTU-CVE-2022-28321"],"upstream":["CVE-2022-28321","UBUNTU-CVE-2022-28321"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5825-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-28321"},{"type":"REPORT","url":"https://launchpad.net/bugs/2006073"}],"affected":[{"package":{"name":"pam","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/pam@1.1.8-1ubuntu2.2+esm3?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.8-1ubuntu2.2+esm3"}]}],"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","1.1.8-1ubuntu2.2+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.1.8-1ubuntu2.2+esm3","binary_name":"libpam-cracklib"},{"binary_version":"1.1.8-1ubuntu2.2+esm3","binary_name":"libpam-modules"},{"binary_version":"1.1.8-1ubuntu2.2+esm3","binary_name":"libpam-modules-bin"},{"binary_version":"1.1.8-1ubuntu2.2+esm3","binary_name":"libpam-runtime"},{"binary_version":"1.1.8-1ubuntu2.2+esm3","binary_name":"libpam0g"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5825-2.json","cves_map":{"cves":[{"id":"CVE-2022-28321","severity":[{"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":"CVSS_V3"},{"score":"negligible","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:14.04:LTS"}}},{"package":{"name":"pam","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/pam@1.1.8-3.2ubuntu2.3+esm4?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.8-3.2ubuntu2.3+esm4"}]}],"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","1.1.8-3.2ubuntu2.3+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.1.8-3.2ubuntu2.3+esm4","binary_name":"libpam-cracklib"},{"binary_version":"1.1.8-3.2ubuntu2.3+esm4","binary_name":"libpam-modules"},{"binary_version":"1.1.8-3.2ubuntu2.3+esm4","binary_name":"libpam-modules-bin"},{"binary_version":"1.1.8-3.2ubuntu2.3+esm4","binary_name":"libpam-runtime"},{"binary_version":"1.1.8-3.2ubuntu2.3+esm4","binary_name":"libpam0g"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5825-2.json","cves_map":{"cves":[{"id":"CVE-2022-28321","severity":[{"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":"CVSS_V3"},{"score":"negligible","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:16.04:LTS"}}},{"package":{"name":"pam","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/pam@1.1.8-3.6ubuntu2.18.04.6?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.8-3.6ubuntu2.18.04.6"}]}],"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","1.1.8-3.6ubuntu2.18.04.4"],"ecosystem_specific":{"binaries":[{"binary_version":"1.1.8-3.6ubuntu2.18.04.6","binary_name":"libpam-cracklib"},{"binary_version":"1.1.8-3.6ubuntu2.18.04.6","binary_name":"libpam-modules"},{"binary_version":"1.1.8-3.6ubuntu2.18.04.6","binary_name":"libpam-modules-bin"},{"binary_version":"1.1.8-3.6ubuntu2.18.04.6","binary_name":"libpam-runtime"},{"binary_version":"1.1.8-3.6ubuntu2.18.04.6","binary_name":"libpam0g"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5825-2.json","cves_map":{"cves":[{"id":"CVE-2022-28321","severity":[{"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":"CVSS_V3"},{"score":"negligible","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:18.04:LTS"}}},{"package":{"name":"pam","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/pam@1.3.1-5ubuntu4.6?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.1-5ubuntu4.6"}]}],"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","1.3.1-5ubuntu4.4"],"ecosystem_specific":{"binaries":[{"binary_version":"1.3.1-5ubuntu4.6","binary_name":"libpam-cracklib"},{"binary_version":"1.3.1-5ubuntu4.6","binary_name":"libpam-modules"},{"binary_version":"1.3.1-5ubuntu4.6","binary_name":"libpam-modules-bin"},{"binary_version":"1.3.1-5ubuntu4.6","binary_name":"libpam-runtime"},{"binary_version":"1.3.1-5ubuntu4.6","binary_name":"libpam0g"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5825-2.json","cves_map":{"cves":[{"id":"CVE-2022-28321","severity":[{"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":"CVSS_V3"},{"score":"negligible","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:20.04:LTS"}}},{"package":{"name":"pam","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/pam@1.4.0-11ubuntu2.3?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.0-11ubuntu2.3"}]}],"versions":["1.3.1-5ubuntu11","1.4.0-10ubuntu1","1.4.0-10ubuntu2","1.4.0-11ubuntu1","1.4.0-11ubuntu2","1.4.0-11ubuntu2.1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.4.0-11ubuntu2.3","binary_name":"libpam-cracklib"},{"binary_version":"1.4.0-11ubuntu2.3","binary_name":"libpam-modules"},{"binary_version":"1.4.0-11ubuntu2.3","binary_name":"libpam-modules-bin"},{"binary_version":"1.4.0-11ubuntu2.3","binary_name":"libpam-runtime"},{"binary_version":"1.4.0-11ubuntu2.3","binary_name":"libpam0g"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5825-2.json","cves_map":{"cves":[{"id":"CVE-2022-28321","severity":[{"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":"CVSS_V3"},{"score":"negligible","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:22.04:LTS"}}}],"schema_version":"1.7.5"}