kernel: panic while flushing nftables rules that reference deleted chains.
Published May 2, 2016
5.5
MEDIUMCVSS 3.0
EPSS 0.37%
Description
The nft_flush_table function in net/netfilter/nf_tables_api.c in the Linux kernel before 3.18.5 mishandles the interaction between cross-chain jumps and ruleset flushes, which allows local users to cause a denial of service (panic) by leveraging the CAP_NET_ADMIN capability.
Affected products
No data.
- ≤ 3.18.4
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-229.7.2.ael7b
Fixed · RHSA-2015:1137
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-229.7.2.rt56.141.6.el7_1
Fixed · RHSA-2015:1139
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-229.rt56.153.el6rt
Fixed · RHSA-2015:1138
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-229.7.2.ael7b | Fixed | RHSA-2015:1137 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-229.7.2.rt56.141.6.el7_1 | Fixed | RHSA-2015:1139 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-229.rt56.153.el6rt | Fixed | RHSA-2015:1138 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5 and 6 (as they did not include support for netfilter tables API). This issue affects the versions of the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and MRG 2. Future kernel updates for the respective releases may address this issue.
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: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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.37% (0.00367) | 28.21th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.37% (0.00370) | 28.61th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00081) | 21.31th | 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 | 1.10% (0.01104) | 54.09th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.10% (0.01104) | 52.45th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.10% (0.01104) | 50.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.10% (0.01104) | 28.85th | v2 (v2022.01.01) |
References (11)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a2f18db0c68fec96631c10cad9384c196e9008ac x_refsource_CONFIRMVendor Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1137.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-1138.html vendor-advisoryx_refsource_REDHAT
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.5 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2015/02/10/13 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/72552 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2015-1573 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1190966 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/a2f18db0c68fec96631c10cad9384c196e9008ac x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-1573
- https://www.cve.org/CVERecord?id=CVE-2015-1573
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a2f18db0c68fec96631c10cad9384c196e9008ac | x_refsource_CONFIRMVendor Advisory | |
| http://rhn.redhat.com/errata/RHSA-2015-1137.html | vendor-advisoryx_refsource_REDHAT | |
| http://rhn.redhat.com/errata/RHSA-2015-1138.html | vendor-advisoryx_refsource_REDHAT | |
| http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.5 | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2015/02/10/13 | mailing-listx_refsource_MLIST | |
| http://www.securityfocus.com/bid/72552 | vdb-entryx_refsource_BID | |
| https://access.redhat.com/security/cve/CVE-2015-1573 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1190966 | x_refsource_CONFIRMIssue Tracking | |
| https://github.com/torvalds/linux/commit/a2f18db0c68fec96631c10cad9384c196e9008ac | x_refsource_CONFIRMVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-1573 | ||
| https://www.cve.org/CVERecord?id=CVE-2015-1573 |
Change history (0)
No recorded changes yet.