CVE-2026-72051

net: ip6_tunnel: require CAP_NET_ADMIN in the device netns for changelink

HIGH 8.8

En bref

Source
NVD
EPSS
EPSS 0.15 % · centile 4 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Received

Description

In the Linux kernel, the following vulnerability has been resolved: net: ip6_tunnel: require CAP_NET_ADMIN in the device netns for changelink ip6_tnl_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 ip6_tnl_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 8.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HLinux
CVSS 3.1HIGH 8.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected 0bd8762824e73a3cce7b7560a97463301764b616 < 2d53ee7daabe733deb81f51d2cc90188f8ad59a1 ; affected 0bd8762824e73a3cce7b7560a97463301764b616 < 82e53e7281c71e174f9f5877c566a623c637b406 ; affected 0bd8762824e73a3cce7b7560a97463301764b616 < 5252db8fb604321133138c7069d6fc3fcd89cdee ; affected 0bd8762824e73a3cce7b7560a97463301764b616 < 2636d061bc237a2446a146e42dcc6563acfa7432 ; affected 0bd8762824e73a3cce7b7560a97463301764b616 < 7f68f7928484f463a5bc0d50e6fdd8d16f55a5aa ; affected 0bd8762824e73a3cce7b7560a97463301764b616 < 234cd54fc500f69db43e37de38603da617fbbeea
Linux · Linuxaffected 3.12 ; unaffected 0 < 3.12 ; unaffected 5.10.266 ≤ 5.10.* ; unaffected 5.15.217 ≤ 5.15.* ; unaffected 6.1.184 ≤ 6.1.* ; unaffected 6.6.148 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD