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TI-2023-29594 Aliases CVE-2023-53304GHSA-phm5-wwmp-pqvr

netfilter: nft_set_rbtree: fix overlap expiration walk

Priority LOW 24CWE-476Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: fix overlap expiration walk The lazy gc on insert that should remove timed-out entries fails to release the other half of the interval, if any. Can be reproduced with tests/shell/testcases/sets/0044interval_overlap_0 in nftables.git and kmemleak enabled kernel. Second bug is the use of rbe_prev vs. prev pointer. If rbe_prev() returns NULL after at least one iteration, rbe_prev points to element that is not an end interval, hence it should not be removed. Lastly, check the genmask of the end interval if this is active in the current generation.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0016 5th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.10.190, 5.15.124, 6.1.43 +2Red Hat: 2 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux5.10.166 to before 5.10.190; 5.15.91 to before 5.15.124; 6.1.9 to before 6.1.435.10.190, 5.15.124, 6.1.43Patch availableCNA
LinuxLinux6.2 and later5.10.190, 5.15.124, 6.1.43, 6.4.8, 6.5Patch availableCNA
  • Linux VendorLinux Affected 5.10.166 to before 5.10.190; 5.15.91 to before 5.15.124; 6.1.9 to before 6.1.43 Fixed in 5.10.190, 5.15.124, 6.1.43 Patch available CNA
  • Linux VendorLinux Affected 6.2 and later Fixed in 5.10.190, 5.15.124, 6.1.43, 6.4.8, 6.5 Patch available CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*5.10.166 to before 5.10.190; 5.15.91 to before 5.15.124; 6.1.9 to before 6.1.43; 6.2.1 to before 6.4.8VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.2:-:*:*:*:*:*:*6.2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.2:rc6:*:*:*:*:*:*6.2 rc6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.2:rc7:*:*:*:*:*:*6.2 rc7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.2:rc8:*:*:*:*:*:*6.2 rc8VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*6.5 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:*6.5 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:*6.5 rc3VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.10.166 to before 5.10.190; 5.15.91 to before 5.15.124; 6.1.9 to before 6.1.43; 6.2.1 to before 6.4.8 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.2:-:*:*:*:*:*:* Versions 6.2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.2:rc6:*:*:*:*:*:* Versions 6.2 rc6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.2:rc7:*:*:*:*:*:* Versions 6.2 rc7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.2:rc8:*:*:*:*:*:* Versions 6.2 rc8 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:* Versions 6.5 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:* Versions 6.5 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:* Versions 6.5 rc3 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.10.190, 5.15.124, 6.1.43
  • Fix · CNA Linux (Linux) Fixed in 5.10.190, 5.15.124, 6.1.43, 6.4.8, 6.5

Red Hat 2 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-2024:2394 Released 2024-04-30 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-427.13.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.13.1.el9_4, kernel-64k-devel-5.14.0-427.13.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.3.0-427.13.1.el9_4, kernel-5.14.0-427.13.1.el9_4, kernel-64k-5.14.0-427.13.1.el9_4 +29
    • Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-427.13.1.el9_4, libperf-5.14.0-427.13.1.el9_4
    • Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-427.13.1.el9_4, kernel-rt-core-5.14.0-427.13.1.el9_4, kernel-rt-debug-5.14.0-427.13.1.el9_4 +11
    • Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-427.13.1.el9_4, kernel-rt-core-5.14.0-427.13.1.el9_4, kernel-rt-debug-5.14.0-427.13.1.el9_4 +9

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat CodeReady Linux Builder EUS (v.9.0)Fixed RHSA-2024:3421
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:2394
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2024:3421
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2024:2394
Red Hat Enterprise Linux BaseOS EUS (v.9.0)Fixed RHSA-2024:3421
Red Hat Enterprise Linux CRB (v. 9)Fixed RHSA-2024:2394
Red Hat Enterprise Linux NFV (v. 9)Fixed RHSA-2024:2394
Red Hat Enterprise Linux RT (v. 9)Fixed RHSA-2024:2394
Not affected: 5 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-53304
  2. 2026-10-03 Alias added: GHSA-phm5-wwmp-pqvr

References

Patch 7

  • 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