kernel: nfnetlink race in NETLINK_NFLOG socket creation
Published Sep 14, 2017
4.7
MEDIUMCVSS 3.0
EPSS 0.21%
Description
Race condition in the kernel in Red Hat Enterprise Linux 7, kernel-rt and Red Hat Enterprise MRG 2, when the nfnetlink_log module is loaded, allows local users to cause a denial of service (panic) by creating netlink sockets.
Affected products
No data.
- 7.0
- 2.0
- n/a
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-327.el7
Fixed · RHSA-2015:2152
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Affected
Red Hat Enterprise MRG 2
realtime-kernel
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-327.el7 | Fixed | RHSA-2015:2152 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect Red Hat Enterprise Linux 5 and 6. This issue affects the Linux kernels as shipped with Red Hat Enterprise Linux 7, kernel-rt and Red Hat Enterprise MRG 2 and may be addressed in a future update.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
AV:L/AC:M/Au:N/C:N/I:N/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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.21% (0.00212) | 10.39th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.21% (0.00212) | 11.41th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00036) | 7.09th | 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) |
| Feb 13, 2023 | 0.89% (0.00885) | 27.56th | v2 (v2022.01.01) |
| Feb 3, 2023 | 0.89% (0.00890) | 29.75th | 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-2015-7553 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1288934 x_refsource_CONFIRMIssue TrackingThird Party AdvisoryVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-7553
- https://www.cve.org/CVERecord?id=CVE-2015-7553
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2015-7553 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1288934 | x_refsource_CONFIRMIssue TrackingThird Party AdvisoryVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-7553 | ||
| https://www.cve.org/CVERecord?id=CVE-2015-7553 |
Change history (0)
No recorded changes yet.