kernel: arbitrary code execution in linux/net/netfilter/nf_tables_api.c
Published Apr 29, 2022
6.6
MEDIUMCVSS 3.1
EPSS 1.47%
Description
A flaw was found in the Linux kernel in linux/net/netfilter/nf_tables_api.c of the netfilter subsystem. This flaw allows a local user to cause an out-of-bounds write issue.
Affected products
- Vendor n/a Product Kernel Defaultn/a
- Version Kernel 5.16.18StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Kernel | n/a |
|
Configuration 1
- < 5.16.18
Configuration 2
- 35
No data.
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Not affected
Red Hat Virtualization 4
redhat-virtualization-host
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected | n/a |
| Red Hat Virtualization 4 | redhat-virtualization-host | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
There was no shipped kernel version that was seen affected by this problem.
Red Hat mitigation
In order to trigger the issue, it requires the ability to create user/net namespaces. On non-containerized deployments of Red Hat Enterprise Linux 8, you can disable user namespaces by setting user.max_user_namespaces to 0: # echo "user.max_user_namespaces=0" > /etc/sysctl.d/userns.conf # sysctl -p /etc/sysctl.d/userns.conf On containerized deployments, such as Red Hat OpenShift Container Platform, do not use this mitigation as the functionality is needed to be enabled.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:P/I:P/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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.47% (0.01467) | 72.76th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.45% (0.01450) | 69.84th | v5 (v2026.06.15) |
| Jul 30, 2025 | 2.30% (0.02299) | 84.08th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.05% (0.01053) | 76.04th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00043) | 11.63th | v3 (v2023.03.01) |
| Jun 20, 2024 | 0.04% (0.00043) | 9.83th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00043) | 7.83th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.09% (0.03090) | 83.77th | v2 (v2022.01.01) |
| Feb 24, 2023 | 3.09% (0.03090) | 83.72th | v2 (v2022.01.01) |
| Jan 14, 2023 | 2.01% (0.02008) | 78.70th | v2 (v2022.01.01) |
| Aug 26, 2022 | 1.67% (0.01669) | 75.00th | v2 (v2022.01.01) |
| Apr 30, 2022 | 1.41% (0.01412) | 71.14th | v2 (v2022.01.01) |
References (10)
- http://blog.dbouman.nl/2022/04/02/How-The-Tables-Have-Turned-CVE-2022-1015-1016/ ExploitThird Party Advisory
- http://packetstormsecurity.com/files/169951/Kernel-Live-Patch-Security-Notice-LSN-0090-1.html Third Party AdvisoryVDB Entry
- http://www.openwall.com/lists/oss-security/2022/08/25/2 mailing-listMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2023/01/13/2 mailing-listThird Party Advisory
- http://www.openwall.com/lists/oss-security/2023/02/23/1 mailing-list
- https://access.redhat.com/security/cve/CVE-2022-1015 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2065323 ExploitIssue TrackingThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2022-1015
- https://seclists.org/oss-sec/2022/q1/205 ExploitMailing ListThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2022-1015
| Link | Providers | Tags |
|---|---|---|
| http://blog.dbouman.nl/2022/04/02/How-The-Tables-Have-Turned-CVE-2022-1015-1016/ | ExploitThird Party Advisory | |
| http://packetstormsecurity.com/files/169951/Kernel-Live-Patch-Security-Notice-LSN-0090-1.html | Third Party AdvisoryVDB Entry | |
| http://www.openwall.com/lists/oss-security/2022/08/25/2 | mailing-listMailing ListThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2023/01/13/2 | mailing-listThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2023/02/23/1 | mailing-list | |
| https://access.redhat.com/security/cve/CVE-2022-1015 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2065323 | ExploitIssue TrackingThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2022-1015 | ||
| https://seclists.org/oss-sec/2022/q1/205 | ExploitMailing ListThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2022-1015 |
Change history (0)
No recorded changes yet.