iio: adc: ad7124: Fix potential overflow due to non sequential channel numbers (Linux Linux)

CVE-2021-47172
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.22 % · centile 13 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: iio: adc: ad7124: Fix potential overflow due to non sequential channel numbers Channel numbering must start at 0 and then not have any holes, or it is possible to overflow the available storage. Note this bug was introduced as part of a fix to ensure we didn't rely on the ordering of child nodes. So we need to support arbitrary ordering but they all need to be there somewhere. Note I hit this when using qemu to test the rest of this series. Arguably this isn't the best fix, but it is probably the most minimal option for backporting etc. Alexandru's sign-off is here because he carried this patch in a larger set that Jonathan then applied.

Faiblesses (CWE)

  • CWE-120 — Copie de tampon sans vérification de taille (débordement classique)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCISA-ADP
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 5408cbc6337300d6f1a87c797273c535ed96305a < f49149964d2423fb618fb6b755bb1eaa431cca2c ; affected d7857e4ee1ba69732b16c73b2f2dde83ecd78ee4 < f70122825076117787b91e7f219e21c09f11a5b9 ; affected d7857e4ee1ba69732b16c73b2f2dde83ecd78ee4 < 26da8040eccc6c6b0e415e9a3baf72fd39eb2fdc ; affected d7857e4ee1ba69732b16c73b2f2dde83ecd78ee4 < f2a772c51206b0c3f262e4f6a3812c89a650191b ; affected 5.4.14 < 5.4.124
Linux · Linuxaffected 5.5 ; unaffected 0 < 5.5 ; unaffected 5.4.124 ≤ 5.4.* ; unaffected 5.10.42 ≤ 5.10.* ; unaffected 5.12.9 ≤ 5.12.* ; unaffected 5.13 ≤ *

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