net: ipip: require CAP_NET_ADMIN in the device netns for changelink (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.15 % · percentile 4 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: net: ipip: require CAP_NET_ADMIN in the device netns for changelink ipip_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 ipip_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed.
Weaknesses (CWE)
- CWE-862 — Missing Authorization
References
- https://git.kernel.org/stable/c/a7d2642a50282322bc33f34ee7305f2b793df494
- https://git.kernel.org/stable/c/068ad9b85f681755f751ebab82ae98146cec163d
- https://git.kernel.org/stable/c/91571643e554ae89a91942380d5f5361fb7060a2
- https://git.kernel.org/stable/c/983cc4aa7e6f633b34c3ee743771252d7afa9a90
- https://git.kernel.org/stable/c/26544021d5c49cc6ae8a968ccb5033e6363854a4
- https://git.kernel.org/stable/c/68cadc3698c7de88966d306d12ec9c6217da228a
- https://git.kernel.org/stable/c/d49edcc65e0a37cc9b386a94415c5d6670ca8b71
- https://git.kernel.org/stable/c/8211a26324667980a463c069469a818e71207e02
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| 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) |
European references
- ENISA EUVD · EUVD-2026-59011
- GCVE · GCVE-0-2026-72053
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-1255 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 6c742e714d8c282fd8f8b22d3e20b5141738c1ee < a7d2642a50282322bc33f34ee7305f2b793df494 ; affected 6c742e714d8c282fd8f8b22d3e20b5141738c1ee < 068ad9b85f681755f751ebab82ae98146cec163d ; affected 6c742e714d8c282fd8f8b22d3e20b5141738c1ee < 91571643e554ae89a91942380d5f5361fb7060a2 ; affected 6c742e714d8c282fd8f8b22d3e20b5141738c1ee < 983cc4aa7e6f633b34c3ee743771252d7afa9a90 ; affected 6c742e714d8c282fd8f8b22d3e20b5141738c1ee < 26544021d5c49cc6ae8a968ccb5033e6363854a4 ; affected 6c742e714d8c282fd8f8b22d3e20b5141738c1ee < 68cadc3698c7de88966d306d12ec9c6217da228a |
| Linux · Linux | affected 3.12 ; unaffected 0 < 3.12 ; unaffected 5.10.266 ≤ 5.10.* ; unaffected 5.15.217 ≤ 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 |