CVE-2022-39842

CVE-2022-39842
MEDIUM 6.1

En bref

Source
NVD
EPSS
EPSS 0.60 % · centile 49 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
mitre
Statut NVD
Modified

Description

An issue was discovered in the Linux kernel before 5.19. In pxa3xx_gcu_write in drivers/video/fbdev/pxa3xx-gcu.c, the count parameter has a type conflict of size_t versus int, causing an integer overflow and bypassing the size check. After that, because it is used as the third argument to copy_from_user(), a heap overflow may occur. NOTE: the original discoverer disputes that the overflow can actually happen.

Faiblesses (CWE)

  • CWE-190 — Débordement d'entier

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 6.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
affected n/a

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