CVE-2026-68343

smb: client: validate DFS referral PathConsumed

CRITICAL 9.1

En bref

Source
NVD
EPSS
EPSS 0.51 % · centile 44 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Received

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: validate DFS referral PathConsumed parse_dfs_referrals() validates that the response contains the fixed referral entry array and, on for-next, the per-referral string offsets. However, the response also contains a PathConsumed value that is later used for DFS path parsing. If a malformed response provides a PathConsumed value larger than the search name, later DFS parsing can advance beyond the end of the path. Validate PathConsumed against the search name length before storing it in the parsed referral.

Faiblesses (CWE)

  • CWE-125 — Lecture hors limites

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1CRITICAL 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HLinux
CVSS 3.1CRITICAL 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected 4ecce920e13ace16a5ba45efe8909946c28fb2ad < bfebe5110fd135d86d65a0a346e14c106b02028b ; affected 4ecce920e13ace16a5ba45efe8909946c28fb2ad < 5b439f39f33ec15d319ced3b025e122346fba987 ; affected 4ecce920e13ace16a5ba45efe8909946c28fb2ad < 285bd4a5f3f156aa5869843b47a1b1380b774241 ; affected 4ecce920e13ace16a5ba45efe8909946c28fb2ad < 2fdd6d196c656b376cc251e1e9ff110b3ed522e1 ; affected 4ecce920e13ace16a5ba45efe8909946c28fb2ad < 9f88a99ed511651b2dc2177d6854b2d1b8322e75 ; affected 4ecce920e13ace16a5ba45efe8909946c28fb2ad < f6f5ee2aa33b350c671721b965251c42cebb962e
Linux · Linuxaffected 4.11 ; unaffected 0 < 4.11 ; unaffected 6.1.183 ≤ 6.1.* ; unaffected 6.6.148 ≤ 6.6.* ; unaffected 6.12.101 ≤ 6.12.* ; unaffected 6.18.42 ≤ 6.18.*

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