Kernel: qxl: race condition leading to use-after-free in qxl_mode_dumb_create() (Red Hat Red Hat Enterprise Linux 8)

CVE-2023-39198
HIGH 7.5

En bref

Source
NVD
EPSS
EPSS 0.42 % · centile 36 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
redhat
Statut NVD
Modified

Description

A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation.

Faiblesses (CWE)

  • CWE-416 — Utilisation après libération

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.5CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:Hredhat
CVSS 3.1HIGH 7.5CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:HNVD · secalert@redhat.com (Secondary)
CVSS 3.1MEDIUM 6.4CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Red Hat · Red Hat Enterprise Linux 8unaffected 0:4.18.0-553.rt7.342.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:4.18.0-553.el8_10 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:5.14.0-427.13.1.el9_4 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:5.14.0-427.13.1.el9_4 < *
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 9

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