CVE-2023-4458

Kernel: ksmbd: smb2_open out-of-bounds read information disclosure vulnerability

En bref

Sévérité
MEDIUM 4.0
EPSS
EPSS 0.84 % · centile 58 (2026-10-27)
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
fedora
Statut NVD
Analyzed

Description

A flaw was found within the parsing of extended attributes in the kernel ksmbd module. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this to disclose sensitive information on affected installations of Linux. Only systems with ksmbd enabled are vulnerable to this CVE.

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 4.0CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:Nfedora
CVSS 3.1MEDIUM 4.0CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:NNVD · patrick@puiterwijk.org (Secondary)
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NNVD · nvd@nist.gov (Primary)

Faiblesses (CWE)

Références européennes

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
kernelunaffected 17d5b135bb720832364e8f55f6a887a3c7ec8fdb < *
Red Hat · Red Hat Enterprise Linux 6
Red Hat · Red Hat Enterprise Linux 7
Red Hat · Red Hat Enterprise Linux 7
Red Hat · Red Hat Enterprise Linux 8
Red Hat · Red Hat Enterprise Linux 8
Red Hat · Red Hat Enterprise Linux 9
Red Hat · Red Hat Enterprise Linux 9

Références

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
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