Linux Linux

CVE-2022-33741
HIGH 7.1

En bref

Source
NVD
EPSS
EPSS 0.33 % · centile 26 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
XEN
Statut NVD
Modified

Description

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).

Faiblesses (CWE)

  • CWE-200 — Exposition d'informations sensibles à un acteur non autorisé

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HNVD · nvd@nist.gov (Primary)
CVSS 2.0LOW 3.6AV:L/AC:L/Au:N/C:P/I:N/A:PNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxunknown consult Xen advisory XSA-403
Xen · xenunknown consult Xen advisory XSA-403

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