net: sit: require CAP_NET_ADMIN in the device netns for changelink (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.16 % · centile 5 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Received
Rechercher sur…
Description
In the Linux kernel, the following vulnerability has been resolved: net: sit: require CAP_NET_ADMIN in the device netns for changelink ipip6_changelink() operates on at most two netns, dev_net(dev) and the tunnel link netns t->net. They differ once the device is created in or moved to a netns other than the one the request runs in. The rtnl changelink path checks CAP_NET_ADMIN only against dev_net(dev), so a caller privileged there but not in t->net can rewrite a tunnel that lives in t->net. Gate ipip6_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed. sit was the one tunnel type not covered by the recent series that added this check to the other changelink() handlers.
Faiblesses (CWE)
- CWE-862 — Autorisation absente
Références
- https://git.kernel.org/stable/c/cb41b308e9d867725d965b291dd085028e36a480
- https://git.kernel.org/stable/c/c5a0ae895432596b2f464172da8218e2d84e2932
- https://git.kernel.org/stable/c/7d139dec96691cde96cb40ed293e2d13d994fb4f
- https://git.kernel.org/stable/c/388ccffbd2e7e5e4271f291085a7451865705305
- https://git.kernel.org/stable/c/c0ea1aedb37bb979e864ed7787975434bbd9db73
- https://git.kernel.org/stable/c/3118e97dae533fb45964b87bbed1801afcff7c65
- https://git.kernel.org/stable/c/99ae3248b33df94201915d9c32e7470cdf08cfcd
- https://git.kernel.org/stable/c/27ccb68e7cccead5d8c611665a45d23032d468b3
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-59019
- GCVE · GCVE-0-2026-72061
Avis du CERT-FR
- 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-1255 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 < cb41b308e9d867725d965b291dd085028e36a480 ; affected 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 < c5a0ae895432596b2f464172da8218e2d84e2932 ; affected 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 < 7d139dec96691cde96cb40ed293e2d13d994fb4f ; affected 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 < 388ccffbd2e7e5e4271f291085a7451865705305 ; affected 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 < c0ea1aedb37bb979e864ed7787975434bbd9db73 ; affected 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 < 3118e97dae533fb45964b87bbed1801afcff7c65 |
| Linux · Linux | affected 3.11 ; unaffected 0 < 3.11 ; unaffected 5.10.261 ≤ 5.10.* ; unaffected 5.15.212 ≤ 5.15.* ; unaffected 6.1.178 ≤ 6.1.* ; unaffected 6.6.145 ≤ 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 |