netfilter: xt_hashlimit: validate hashtable supports XT_HASHLIMIT_RATE_MATCH (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.12 % · percentile 2 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_hashlimit: validate hashtable supports XT_HASHLIMIT_RATE_MATCH The XT_HASHLIMIT_RATE_MATCH flag mode changes the semantics of the dsthash_ent structure which represents an entry in the hashtable. There is a union area which uses a different layout to express the rate match mode. Update .checkentry path to validate the XT_HASHLIMIT_RATE_MATCH mode flag is requested by two or more different rules that refer to the same hashtable. Otherwise, uninitialized access to the burst field in the union is possible. Reject the use of the XT_HASHLIMIT_RATE_MATCH mode flag if set on by revision less than 3 too.
References
- https://git.kernel.org/stable/c/402befce5854c195058cf4bab7c78ca286068a26
- https://git.kernel.org/stable/c/dee686b5e7f21180538ff719867702f411c8eb5c
- https://git.kernel.org/stable/c/f76ab783e7d8d33e33dd7dfa697297f70d57b0e8
- https://git.kernel.org/stable/c/24683fea1f06bd3bd2707b99460e859bc6464c22
- https://git.kernel.org/stable/c/32ec8d4aba2cf22e12bdc28df8c4bd833c195fc0
- https://git.kernel.org/stable/c/d186f77d18bdfb252d401ff992ca3001a6a65a0f
- https://git.kernel.org/stable/c/06a76334243ccd875a981aa8bb46c0f931ef1e3b
- https://git.kernel.org/stable/c/305b63e1402267459fdabb183af4527f6799eebf
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | Linux |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-59629
- GCVE · GCVE-0-2026-74564
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1372 — Multiples vulnérabilités dans les produits SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1335 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1333 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1232 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1163 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1090 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected bea74641e3786d51dcf1175527cc1781420961c9 < 402befce5854c195058cf4bab7c78ca286068a26 ; affected bea74641e3786d51dcf1175527cc1781420961c9 < dee686b5e7f21180538ff719867702f411c8eb5c ; affected bea74641e3786d51dcf1175527cc1781420961c9 < f76ab783e7d8d33e33dd7dfa697297f70d57b0e8 ; affected bea74641e3786d51dcf1175527cc1781420961c9 < 24683fea1f06bd3bd2707b99460e859bc6464c22 ; affected bea74641e3786d51dcf1175527cc1781420961c9 < 32ec8d4aba2cf22e12bdc28df8c4bd833c195fc0 ; affected bea74641e3786d51dcf1175527cc1781420961c9 < d186f77d18bdfb252d401ff992ca3001a6a65a0f |
| Linux · Linux | affected 4.14 ; unaffected 0 < 4.14 ; unaffected 5.10.265 ≤ 5.10.* ; unaffected 5.15.216 ≤ 5.15.* ; unaffected 6.1.183 ≤ 6.1.* ; unaffected 6.6.151 ≤ 6.6.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |