pam_access does not handle netmask matches correctly
Priority LOW 38CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-284.
Summary
A incorrect variable in a SUSE specific patch for pam_access rule matching in PAM 1.3.0 in openSUSE Leap 15.0 and SUSE Linux Enterprise 15 could lead to pam_access rules not being applied (fail open).
Why it matters now
EPSS 0.01342 71st percentileScored 2026-11-07
Fix Fixed pam (SUSE): 1.3.0 before 2018-11-30
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SUSE | pam | 1.3.0 to before 1.3.0 before 2018-11-30 | 1.3.0 before 2018-11-30 | Patch available | CNA |
- pam VendorSUSE Affected 1.3.0 to before 1.3.0 before 2018-11-30 Fixed in 1.3.0 before 2018-11-30 Patch available CNA
Remediation
- Fix · CNA pam (SUSE) Fixed in 1.3.0 before 2018-11-30
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Virtualization 4
Timeline
- 2026-10-02 Threatist record created from CVE-2018-17953
- 2026-10-03 Alias added: GHSA-wwc4-7rwv-m5ch
References
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Sources
- CVE-2018-17953 · CVE Program
- CVE-2018-17953 · NVD
- FIRST EPSS
- GHSA-wwc4-7rwv-m5ch · GitHub Advisory Database · CC BY 4.0
- CVE-2018-17953 · Red Hat security data · CC BY 4.0
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