x86: Deadlock in vlapic_error() (Xen Xen)
En bref
- Source
- NVD
- EPSS
- EPSS 0.54 % · centile 46 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- XEN
- Statut NVD
- Analyzed
Rechercher sur…
Description
In x86's APIC (Advanced Programmable Interrupt Controller) architecture, error conditions are reported in a status register. Furthermore, the OS can opt to receive an interrupt when a new error occurs. It is possible to configure the error interrupt with an illegal vector, which generates an error when an error interrupt is raised. This case causes Xen to recurse through vlapic_error(). The recursion itself is bounded; errors accumulate in the the status register and only generate an interrupt when a new status bit becomes set. However, the lock protecting this state in Xen will try to be taken recursively, and deadlock.
Faiblesses (CWE)
- CWE-209 — Message d'erreur contenant des informations sensibles
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L | CISA-ADP |
| CVSS 3.1 | HIGH 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2024-41694
- GCVE · GCVE-0-2024-45817
Avis du CERT-FR
- CERTFR-2024-AVI-0810 — Vulnérabilité dans Xen · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0809 — Multiples vulnérabilités dans les produits Citrix · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:*≥ 4.5.0
Produits affectés
| Produit | Versions |
|---|---|
| Xen · Xen | unknown consult Xen advisory XSA-462 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |