pam_access does not handle netmask matches correctly
Published Nov 27, 2018
8.1
HIGHCVSS 3.0
EPSS 1.34%
Description
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).
Affected products
-
- Version 1.3.0StatusaffectedConstraints<1.3.0 before 2018-11-30
- Version
No data.
Red Hat Enterprise Linux 5
pam
Not affected
Red Hat Enterprise Linux 6
pam
Not affected
Red Hat Enterprise Linux 7
pam
Not affected
Red Hat Enterprise Linux 8
pam
Not affected
Red Hat Virtualization 4
pam
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | pam | Not affected | n/a |
| Red Hat Enterprise Linux 6 | pam | Not affected | n/a |
| Red Hat Enterprise Linux 7 | pam | Not affected | n/a |
| Red Hat Enterprise Linux 8 | pam | Not affected | n/a |
| Red Hat Virtualization 4 | pam | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (CVE.org) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
AV:N/AC:M/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.34% (0.01342) | 70.34th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.34% (0.01342) | 70.10th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.22% (0.00222) | 60.93th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.22% (0.00222) | 60.33th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.19% (0.00186) | 54.07th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.42% (0.00416) | 10.04th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (5)
- https://access.redhat.com/security/cve/CVE-2018-17953 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1652593 Issue Tracking
- https://bugzilla.suse.com/show_bug.cgi?id=1115640 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2018-17953
- https://www.cve.org/CVERecord?id=CVE-2018-17953
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2018-17953 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1652593 | Issue Tracking | |
| https://bugzilla.suse.com/show_bug.cgi?id=1115640 | x_refsource_CONFIRM | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-17953 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-17953 |
Change history (0)
No recorded changes yet.