netfilter: conntrack: re-fetch conntrack after insertion (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.82 % · percentile 57 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing, insertion can free skb->_nfct and set skb->_nfct to the already-confirmed entry. This wasn't found before because the conntrack entry and the extension space used to free'd after an rcu grace period, plus the race needs events enabled to trigger.
References
- https://git.kernel.org/stable/c/e97222b785e70e8973281666d709baad6523d8af
- https://git.kernel.org/stable/c/92a999d1963eed0df666284e20055136ceabd12f
- https://git.kernel.org/stable/c/b16bb373988da3ceb0308381634117e18b6ec60d
- https://git.kernel.org/stable/c/91a36ec160ec1a0c8f5352b772dffcbb0b6023e3
- https://git.kernel.org/stable/c/01989d7eebb61c99bd4b88ebc8e261bd2f02caed
- https://git.kernel.org/stable/c/04f9e9104c969d8ce10a4a43634f641ed082092d
- https://git.kernel.org/stable/c/04e4a11dc723c52db7a36dc58f0d69ce6426f8f0
- https://git.kernel.org/stable/c/56b14ecec97f39118bf85c9ac2438c5a949509ed
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2022-54671
- GCVE · GCVE-0-2022-49561
CERT-FR advisories
- CERTFR-2025-AVI-1057 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0449 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.7 < 4.14.282cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.15 < 4.19.246cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.197cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.120cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.45cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.17.13cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.18 < 5.18.2
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 71d8c47fc653711c41bc3282e5b0e605b3727956 < e97222b785e70e8973281666d709baad6523d8af ; affected 71d8c47fc653711c41bc3282e5b0e605b3727956 < 92a999d1963eed0df666284e20055136ceabd12f ; affected 71d8c47fc653711c41bc3282e5b0e605b3727956 < b16bb373988da3ceb0308381634117e18b6ec60d ; affected 71d8c47fc653711c41bc3282e5b0e605b3727956 < 91a36ec160ec1a0c8f5352b772dffcbb0b6023e3 ; affected 71d8c47fc653711c41bc3282e5b0e605b3727956 < 01989d7eebb61c99bd4b88ebc8e261bd2f02caed ; affected 71d8c47fc653711c41bc3282e5b0e605b3727956 < 04f9e9104c969d8ce10a4a43634f641ed082092d |
| Linux · Linux | affected 4.7 ; unaffected 0 < 4.7 ; unaffected 4.14.282 ≤ 4.14.* ; unaffected 4.19.246 ≤ 4.19.* ; unaffected 5.4.197 ≤ 5.4.* ; unaffected 5.10.120 ≤ 5.10.* |
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 |