selinux-policy: policy package update causes denial of service
Published Jul 21, 2017
5.5
MEDIUMCVSS 3.0
EPSS 0.27%
Description
selinux-policy when sysctl fs.protected_hardlinks are set to 0 allows local users to cause a denial of service (SSH login prevention) by creating a hardlink to /etc/passwd from a directory named .config, and updating selinux-policy.
Affected products
No data.
- n/a
No data.
Red Hat Enterprise Linux 5
selinux-policy
Not affected
Red Hat Enterprise Linux 6
selinux-policy
Not affected
Red Hat Enterprise Linux 7
selinux-policy
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | selinux-policy | Not affected | n/a |
| Red Hat Enterprise Linux 6 | selinux-policy | Not affected | n/a |
| Red Hat Enterprise Linux 7 | selinux-policy | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AV:L/AC:L/Au:N/C:N/I:N/A:P
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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.27% (0.00274) | 17.88th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.27% (0.00274) | 18.89th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00040) | 9.19th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
References (4)
- https://access.redhat.com/security/cve/CVE-2015-3170 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1218672 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-3170
- https://www.cve.org/CVERecord?id=CVE-2015-3170
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2015-3170 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1218672 | x_refsource_CONFIRMIssue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-3170 | ||
| https://www.cve.org/CVERecord?id=CVE-2015-3170 |
Change history (0)
No recorded changes yet.