NFS: fix an incorrect limit in filelayout_decode_layout() (Linux Linux)

CVE-2021-47168
CRITICAL 9.8

En bref

Source
NVD
EPSS
EPSS 0.77 % · centile 55 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: NFS: fix an incorrect limit in filelayout_decode_layout() The "sizeof(struct nfs_fh)" is two bytes too large and could lead to memory corruption. It should be NFS_MAXFHSIZE because that's the size of the ->data[] buffer. I reversed the size of the arguments to put the variable on the left.

Faiblesses (CWE)

  • CWE-787 — Écriture hors limites

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 16b374ca439fb406e46e071f75428f5b033056f8 < 9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040 ; affected 16b374ca439fb406e46e071f75428f5b033056f8 < b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1 ; affected 16b374ca439fb406e46e071f75428f5b033056f8 < f299522eda1566cbfbae4b15c82970fc41b03714 ; affected 16b374ca439fb406e46e071f75428f5b033056f8 < 945ebef997227ca8c20bad7f8a8358c8ee57a84a ; affected 16b374ca439fb406e46e071f75428f5b033056f8 < e411df81cd862ef3d5b878120b2a2fef0ca9cdb1 ; affected 16b374ca439fb406e46e071f75428f5b033056f8 < 9b367fe770b1b80d7bf64ed0d177544a44405f6e
Linux · Linuxaffected 2.6.37 ; unaffected 0 < 2.6.37 ; unaffected 4.4.271 ≤ 4.4.* ; unaffected 4.9.271 ≤ 4.9.* ; unaffected 4.14.235 ≤ 4.14.* ; unaffected 4.19.193 ≤ 4.19.*

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