{"id":"CVE-2022-28321","title":"The Linux-PAM package before 1.5.2-6.1 for openSUSE Tumbleweed allows authentication bypass for SSH logins","summary":"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 vi…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-287","CWE-287"],"vendor":"linux-pam","product":"linux-pam","affected":["linux-pam < 1.5.2-6.1"],"patched":["linux-pam 1.5.2-6.1"],"published":"2022-09-19","updated":"2026-10-14","sourceUpdated":"2026-10-14T17:17:38.040","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-28321","references":[{"url":"http://download.opensuse.org/source/distribution/openSUSE-current/repo/oss/src/","label":"cve@mitre.org"},{"url":"https://bugzilla.suse.com/show_bug.cgi?id=1197654","label":"cve@mitre.org"},{"url":"https://www.suse.com/security/cve/CVE-2022-28321.html","label":"cve@mitre.org"},{"url":"http://download.opensuse.org/source/distribution/openSUSE-current/repo/oss/src/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.suse.com/show_bug.cgi?id=1197654","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.suse.com/security/cve/CVE-2022-28321.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd"],"epss":0.01502,"epssPercentile":0.73787,"ingestedAt":"2026-10-14T17:44:53.601Z","slug":"CVE-2022-28321","body":"## Overview\n\nThe 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.\n\n## Affected\n\n- `linux-pam < 1.5.2-6.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux-pam 1.5.2-6.1`","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.3,"exploitation":0,"ransomware":0},"changes":[]}