What’s Vulnerable › Vulnerabilities

CVE-2022-28321

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-09-19 · updated 2026-10-14
• Weakness: CWE-287

Description

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.

Affected products

• Linux-PAM: before 1.5.2-6.1 — fixed in 1.5.2-6.1

How to fix

Upgrade to a fixed version: Linux-PAM 1.5.2-6.1. Check the vendor advisory for mitigations.

References

• http://download.opensuse.org/source/distribution/openSUSE-current/repo/oss/src/
• https://bugzilla.suse.com/show_bug.cgi?id=1197654
• https://www.suse.com/security/cve/CVE-2022-28321.html
• http://download.opensuse.org/source/distribution/openSUSE-current/repo/oss/src/
• https://bugzilla.suse.com/show_bug.cgi?id=1197654
• https://www.suse.com/security/cve/CVE-2022-28321.html
• https://cert-portal.siemens.com/productcert/html/ssa-398330.html

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