CVE-2025-61661

Grub2: grub2: out-of-bounds write via malicious usb device

MEDIUM 4.8

En bref

Source
NVD
EPSS
EPSS 0.21 % · centile 11 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
redhat
Statut NVD
Deferred

Description

A vulnerability has been identified in the GRUB (Grand Unified Bootloader) component. This flaw occurs because the bootloader mishandles string conversion when reading information from a USB device, allowing an attacker to exploit inconsistent length values. A local attacker can connect a maliciously configured USB device during the boot sequence to trigger this issue. A successful exploitation may lead GRUB to crash, leading to a Denial of Service. Data corruption may be also possible, although given the complexity of the exploit the impact is most likely limited.

Faiblesses (CWE)

  • CWE-131 — Calcul incorrect de la taille d'un tampon

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 4.8CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:Hredhat
CVSS 3.1MEDIUM 4.8CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:HNVD · secalert@redhat.com (Secondary)

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
GNU · grub2affected 0 ≤ 2.14
Red Hat · Red Hat Enterprise Linux 10
Red Hat · Red Hat Enterprise Linux 7
Red Hat · Red Hat Enterprise Linux 8
Red Hat · Red Hat Enterprise Linux 9
Red Hat · Red Hat OpenShift Container Platform 4
Red Hat · Red Hat OpenShift Container Platform 4

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