Kernel: netfilter: nf_tables_newrule when adding a rule with nfta_rule_chain_id leads to use-after-free
Published Aug 7, 2023
7.8
HIGHCVSS 3.1
EPSS 0.56%
Description
A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.
Affected products
No data.
Configuration 1
- ≥ 5.9 · < 5.10.190
- ≥ 5.11 · < 5.15.124
- ≥ 5.16 · < 6.1.43
- ≥ 6.2 · < 6.4.8
- 6.5
- 6.5
- 6.5
Configuration 2
- 38
Configuration 3
- 9.0
- 9.2
- 9.0
- 9.0
- 9.2
Configuration 4
- 10.0
- 11.0
- 12.0
No data.
Red Hat Enterprise Linux 9
kernel-0:5.14.0-284.30.1.el9_2
Fixed · RHSA-2023:5069
Red Hat Enterprise Linux 9
kernel-0:5.14.0-284.30.1.el9_2
Fixed · RHSA-2023:5069
Red Hat Enterprise Linux 9
kernel-rt-0:5.14.0-284.30.1.rt14.315.el9_2
Fixed · RHSA-2023:5091
Red Hat Enterprise Linux 9
kpatch-patch
Fixed · RHSA-2023:5093
Red Hat Enterprise Linux 9.0 Extended Update Support
kernel-0:5.14.0-70.80.1.el9_0
Fixed · RHSA-2023:7382
Red Hat Enterprise Linux 9.0 Extended Update Support
kernel-rt-0:5.14.0-70.80.1.rt21.151.el9_0
Fixed · RHSA-2023:7389
Red Hat Enterprise Linux 9.0 Extended Update Support
kpatch-patch
Fixed · RHSA-2023:7411
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
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 9 | kernel-0:5.14.0-284.30.1.el9_2 | Fixed | RHSA-2023:5069 |
| Red Hat Enterprise Linux 9 | kernel-0:5.14.0-284.30.1.el9_2 | Fixed | RHSA-2023:5069 |
| Red Hat Enterprise Linux 9 | kernel-rt-0:5.14.0-284.30.1.rt14.315.el9_2 | Fixed | RHSA-2023:5091 |
| Red Hat Enterprise Linux 9 | kpatch-patch | Fixed | RHSA-2023:5093 |
| Red Hat Enterprise Linux 9.0 Extended Update Support | kernel-0:5.14.0-70.80.1.el9_0 | Fixed | RHSA-2023:7382 |
| Red Hat Enterprise Linux 9.0 Extended Update Support | kernel-rt-0:5.14.0-70.80.1.rt21.151.el9_0 | Fixed | RHSA-2023:7389 |
| Red Hat Enterprise Linux 9.0 Extended Update Support | kpatch-patch | Fixed | RHSA-2023:7411 |
| 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 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Jan 9, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2023–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (7 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.56% (0.00564) | 44.88th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.56% (0.00565) | 42.23th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.09% (0.01086) | 76.35th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Nov 22, 2023 | 0.04% (0.00044) | 8.53th | v3 (v2023.03.01) |
| Aug 16, 2023 | 0.04% (0.00042) | 5.71th | v3 (v2023.03.01) |
| Aug 8, 2023 | 0.05% (0.00050) | 16.85th | v3 (v2023.03.01) |
References (16)
- https://access.redhat.com/errata/RHSA-2023:5069 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2023:5091 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2023:5093 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7382 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7389 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7411 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-4147 vdb-entryx_refsource_REDHATPatchThird Party AdvisoryVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2225239 issue-trackingx_refsource_REDHATIssue TrackingPatchThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0ebc1064e4874d5987722a2ddbc18f94aa53b211 Mailing ListPatch
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://nvd.nist.gov/vuln/detail/CVE-2023-4147
- https://security.netapp.com/advisory/ntap-20231020-0006/
- https://www.cve.org/CVERecord?id=CVE-2023-4147
- https://www.debian.org/security/2023/dsa-5480
- https://www.debian.org/security/2023/dsa-5492
- https://www.spinics.net/lists/stable/msg671573.html Mailing ListPatch
Change history (0)
No recorded changes yet.