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TI-2023-06229 Aliases CVE-2023-6817GHSA-j5r4-2mjg-6xcc

Use-after-free in Linux kernel's netfilter: nf_tables component

Priority LOW 34CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 35 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_pipapo_walk did not skip inactive elements during set walk which could lead double deactivations of PIPAPO (Pile Packet Policies) elements, leading to use-after-free. We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a.

Why it matters now

EPSS 0.00334 26th percentileScored 2026-11-07
Fix Partial Kernel (Linux): 6.7Red Hat: 14 advisoriesRed Hat: 35 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxKernel5.6 to before 6.76.7Patch availableCNA
  • Kernel VendorLinux Affected 5.6 to before 6.7 Fixed in 6.7 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*5.6 to before 5.10.204; 5.11 to before 5.15.143; 5.16 to before 6.1.68; 6.2 to before 6.6.7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.7:rc1:*:*:*:*:*:*6.7 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.7:rc2:*:*:*:*:*:*6.7 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.7:rc3:*:*:*:*:*:*6.7 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.7:rc4:*:*:*:*:*:*6.7 rc4VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.6 to before 5.10.204; 5.11 to before 5.15.143; 5.16 to before 6.1.68; 6.2 to before 6.6.7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.7:rc1:*:*:*:*:*:* Versions 6.7 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.7:rc2:*:*:*:*:*:* Versions 6.7 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.7:rc3:*:*:*:*:*:* Versions 6.7 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.7:rc4:*:*:*:*:*:* Versions 6.7 rc4 Vulnerable ·Linux

Remediation

  • Fix · CNA Kernel (Linux) Fixed in 6.7

Red Hat 14 advisories

  • RHSA-2024:3421 Released 2024-05-28 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v.9.0) kernel-tools-libs-devel-5.14.0-70.101.1.el9_0
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) kernel-debug-devel-5.14.0-70.101.1.el9_0, kernel-debug-devel-matched-5.14.0-70.101.1.el9_0, kernel-devel-5.14.0-70.101.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS EUS (v.9.0) bpftool-5.14.0-70.101.1.el9_0, kernel-5.14.0-70.101.1.el9_0, kernel-abi-stablelists-5.14.0-70.101.1.el9_0 +14
  • RHSA-2024:3414 Released 2024-05-28 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time EUS (v.9.0) kernel-rt-5.14.0-70.101.1.rt21.173.el9_0, kernel-rt-core-5.14.0-70.101.1.rt21.173.el9_0, kernel-rt-debug-5.14.0-70.101.1.rt21.173.el9_0 +7
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0) kernel-rt-5.14.0-70.101.1.rt21.173.el9_0, kernel-rt-core-5.14.0-70.101.1.rt21.173.el9_0, kernel-rt-debug-5.14.0-70.101.1.rt21.173.el9_0 +9
  • RHSA-2024:2094 Released 2024-05-01 · Red Hat rating Moderate
    security update Logging for Red Hat OpenShift - 5.8.6
    • RHOL 5.8 for RHEL 9 openshift-logging/cluster-logging-operator-bundle, openshift-logging/cluster-logging-rhel9-operator, openshift-logging/elasticsearch-operator-bundle +14
Show 11 more Red Hat advisories
  • RHSA-2024:1404 Released 2024-03-19 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v.8.8) kernel-tools-libs-devel-4.18.0-477.51.1.el8_8
    • Red Hat Enterprise Linux BaseOS EUS (v.8.8) bpftool-4.18.0-477.51.1.el8_8, kernel-4.18.0-477.51.1.el8_8, kernel-abi-stablelists-4.18.0-477.51.1.el8_8 +19
  • RHSA-2024:1382 Released 2024-03-19 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux NFV TUS (v.8.4) kernel-rt-4.18.0-305.125.1.rt7.201.el8_4, kernel-rt-core-4.18.0-305.125.1.rt7.201.el8_4, kernel-rt-debug-4.18.0-305.125.1.rt7.201.el8_4 +9
    • Red Hat Enterprise Linux RT TUS (v.8.4) kernel-rt-4.18.0-305.125.1.rt7.201.el8_4, kernel-rt-core-4.18.0-305.125.1.rt7.201.el8_4, kernel-rt-debug-4.18.0-305.125.1.rt7.201.el8_4 +7
  • RHSA-2024:1367 Released 2024-03-19 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.125.1.el8_4, kernel-4.18.0-305.125.1.el8_4, kernel-abi-stablelists-4.18.0-305.125.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS E4S (v.8.4) bpftool-4.18.0-305.125.1.el8_4, kernel-4.18.0-305.125.1.el8_4, kernel-abi-stablelists-4.18.0-305.125.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.4) bpftool-4.18.0-305.125.1.el8_4, kernel-4.18.0-305.125.1.el8_4, kernel-abi-stablelists-4.18.0-305.125.1.el8_4 +14
  • RHSA-2024:1269 Released 2024-03-12 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time TUS (v. 8.2) kernel-rt-4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-core-4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-debug-4.18.0-193.128.1.rt13.179.el8_2 +7
    • Red Hat Enterprise Linux Real Time for NFV TUS (v. 8.2) kernel-rt-4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-core-4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-debug-4.18.0-193.128.1.rt13.179.el8_2 +9
  • RHSA-2024:1268 Released 2024-03-12 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bpftool-4.18.0-193.128.1.el8_2, kernel-4.18.0-193.128.1.el8_2, kernel-abi-whitelists-4.18.0-193.128.1.el8_2 +14
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.2) bpftool-4.18.0-193.128.1.el8_2, kernel-4.18.0-193.128.1.el8_2, kernel-abi-whitelists-4.18.0-193.128.1.el8_2 +14
    • Red Hat Enterprise Linux BaseOS TUS (v. 8.2) bpftool-4.18.0-193.128.1.el8_2, kernel-4.18.0-193.128.1.el8_2, kernel-abi-whitelists-4.18.0-193.128.1.el8_2 +14
  • RHSA-2024:1248 Released 2024-03-12 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-362.24.1.el9_3, libperf-5.14.0-362.24.1.el9_3
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-362.24.1.el9_3, kernel-64k-debug-devel-matched-5.14.0-362.24.1.el9_3, kernel-64k-devel-5.14.0-362.24.1.el9_3 +11
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.2.0-362.24.1.el9_3, kernel-5.14.0-362.24.1.el9_3, kernel-64k-5.14.0-362.24.1.el9_3 +29
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-362.24.1.el9_3, kernel-rt-core-5.14.0-362.24.1.el9_3, kernel-rt-debug-5.14.0-362.24.1.el9_3 +9
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-362.24.1.el9_3, kernel-rt-core-5.14.0-362.24.1.el9_3, kernel-rt-debug-5.14.0-362.24.1.el9_3 +11
  • RHSA-2024:1018 Released 2024-02-28 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-tools-libs-devel-5.14.0-284.55.1.el9_2
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-64k-debug-devel-5.14.0-284.55.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.55.1.el9_2, kernel-64k-devel-5.14.0-284.55.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool-7.0.0-284.55.1.el9_2, kernel-5.14.0-284.55.1.el9_2, kernel-64k-5.14.0-284.55.1.el9_2 +29
  • RHSA-2024:1019 Released 2024-02-28 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt-5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-core-5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-debug-5.14.0-284.55.1.rt14.340.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt-5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-core-5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-debug-5.14.0-284.55.1.rt14.340.el9_2 +11
  • RHSA-2024:0897 Released 2024-02-20 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-513.18.1.el8_9
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-513.18.1.el8_9, kernel-4.18.0-513.18.1.el8_9, kernel-abi-stablelists-4.18.0-513.18.1.el8_9 +19
  • RHSA-2024:0881 Released 2024-02-20 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-513.18.1.rt7.320.el8_9, kernel-rt-core-4.18.0-513.18.1.rt7.320.el8_9, kernel-rt-debug-4.18.0-513.18.1.rt7.320.el8_9 +9
    • Red Hat Enterprise Linux for Real Time (v. 8) kernel-rt-4.18.0-513.18.1.rt7.320.el8_9, kernel-rt-core-4.18.0-513.18.1.rt7.320.el8_9, kernel-rt-debug-4.18.0-513.18.1.rt7.320.el8_9 +7
  • RHSA-2024:0724 Released 2024-02-07 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v.8.6) kernel-tools-libs-devel-4.18.0-372.91.1.el8_6
    • Red Hat Enterprise Linux BaseOS EUS (v.8.6) bpftool-4.18.0-372.91.1.el8_6, kernel-4.18.0-372.91.1.el8_6, kernel-abi-stablelists-4.18.0-372.91.1.el8_6 +19
    • Red Hat Virtualization 4 Hypervisor for RHEL 8 kernel-devel-4.18.0-372.91.1.el8_6, perf-4.18.0-372.91.1.el8_6

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 9AffectedNo fix yet
RHOL 5.8 for RHEL 9Fixed RHSA-2024:2094
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2024:0897
Red Hat CodeReady Linux Builder (v. 9)Fixed RHSA-2024:1248
Red Hat CodeReady Linux Builder EUS (v.8.6)Fixed RHSA-2024:0724
Red Hat CodeReady Linux Builder EUS (v.8.8)Fixed RHSA-2024:1404
Red Hat CodeReady Linux Builder EUS (v.9.0)Fixed RHSA-2024:3421
Red Hat CodeReady Linux Builder EUS (v.9.2)Fixed RHSA-2024:1018
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:1248
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2024:3421
Red Hat Enterprise Linux AppStream EUS (v.9.2)Fixed RHSA-2024:1018
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2024:0897
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2024:1248
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2024:1268
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2024:1367
Red Hat Enterprise Linux BaseOS E4S (v. 8.2)Fixed RHSA-2024:1268
Red Hat Enterprise Linux BaseOS E4S (v.8.4)Fixed RHSA-2024:1367
Red Hat Enterprise Linux BaseOS EUS (v.8.6)Fixed RHSA-2024:0724
Red Hat Enterprise Linux BaseOS EUS (v.8.8)Fixed RHSA-2024:1404
Red Hat Enterprise Linux BaseOS EUS (v.9.0)Fixed RHSA-2024:3421
Red Hat Enterprise Linux BaseOS EUS (v.9.2)Fixed RHSA-2024:1018
Red Hat Enterprise Linux BaseOS TUS (v. 8.2)Fixed RHSA-2024:1268
Red Hat Enterprise Linux BaseOS TUS (v.8.4)Fixed RHSA-2024:1367
Red Hat Enterprise Linux NFV TUS (v.8.4)Fixed RHSA-2024:1382
Red Hat Enterprise Linux RT TUS (v.8.4)Fixed RHSA-2024:1382
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2024:1248
Red Hat Enterprise Linux Real Time EUS (v.9.0)Fixed RHSA-2024:3414
Red Hat Enterprise Linux Real Time EUS (v.9.2)Fixed RHSA-2024:1019
Red Hat Enterprise Linux Real Time TUS (v. 8.2)Fixed RHSA-2024:1269
Red Hat Enterprise Linux Real Time for NFV (v. 8)Fixed RHSA-2024:0881
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2024:1248
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)Fixed RHSA-2024:3414
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2)Fixed RHSA-2024:1019
Red Hat Enterprise Linux Real Time for NFV TUS (v. 8.2)Fixed RHSA-2024:1269
Red Hat Enterprise Linux for Real Time (v. 8)Fixed RHSA-2024:0881
Red Hat Virtualization 4 Hypervisor for RHEL 8Fixed RHSA-2024:0724
Not affected: 3 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux AppStream EUS (v.9.2)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-6817
  2. 2026-10-03 Alias added: GHSA-j5r4-2mjg-6xcc

References

Patch 2

Other 4

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences