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: linux-pam; opensuse: tumbleweed
References7
- download.opensuse.org/source/distribution/openSUSE-current/repo… PatchVendor Advisory
- bugzilla.suse.com/show_bug.cgi?id=1197654 Issue TrackingPatchVendor Advisory
- www.suse.com/security/cve/CVE-2022-28321.html Vendor Advisory
- download.opensuse.org/source/distribution/openSUSE-current/repo… PatchVendor Advisory
- bugzilla.suse.com/show_bug.cgi?id=1197654 Issue TrackingPatchVendor Advisory
- www.suse.com/security/cve/CVE-2022-28321.html Vendor Advisory
- cert-portal.siemens.com/productcert/html/ssa-398330.html
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 2% percentile: 76 · as of 12 November 2026
- CWE
- CWE-287
Could this be exploited in your environment?
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