net: ip6_vti: require CAP_NET_ADMIN in the device netns for changelink (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.15 % · centile 4 ()
- 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: ip6_vti: require CAP_NET_ADMIN in the device netns for changelink vti6_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 vti6_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed.
Faiblesses (CWE)
- CWE-862 — Autorisation absente
Références
- https://git.kernel.org/stable/c/f5254e7766b4ac02b66b2ccef896cd278503cb11
- https://git.kernel.org/stable/c/ef897249dc957089e6f7f11ceea699e093ad51bd
- https://git.kernel.org/stable/c/f6e8b52a2cb3bbd72ddc2d44e474b907b9dcf5ba
- https://git.kernel.org/stable/c/c64b9ae7eb97e81d54b792910a3aeafd92566c79
- https://git.kernel.org/stable/c/b2b61c540571b3cc2f461e2a579ba2cc8c2a52cf
- https://git.kernel.org/stable/c/0b2f9c908f930ec4be17d389723f9a202d6a883c
- https://git.kernel.org/stable/c/f97e93ebf2f9b8ef3b87f7a9371255e84d151587
- https://git.kernel.org/stable/c/e2ac3b242c37dff323a964962e43854f4b1a2b79
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-2026-59013
- GCVE · GCVE-0-2026-72055
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 61220ab349485d911083d0b7990ccd3db6c63297 < f5254e7766b4ac02b66b2ccef896cd278503cb11 ; affected 61220ab349485d911083d0b7990ccd3db6c63297 < ef897249dc957089e6f7f11ceea699e093ad51bd ; affected 61220ab349485d911083d0b7990ccd3db6c63297 < f6e8b52a2cb3bbd72ddc2d44e474b907b9dcf5ba ; affected 61220ab349485d911083d0b7990ccd3db6c63297 < c64b9ae7eb97e81d54b792910a3aeafd92566c79 ; affected 61220ab349485d911083d0b7990ccd3db6c63297 < b2b61c540571b3cc2f461e2a579ba2cc8c2a52cf ; affected 61220ab349485d911083d0b7990ccd3db6c63297 < 0b2f9c908f930ec4be17d389723f9a202d6a883c |
| Linux · Linux | affected 3.15 ; unaffected 0 < 3.15 ; 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 |