XAPI UTF-8 string handling (Xen XAPI)
En bref
- Source
- NVD
- EPSS
- EPSS 0.18 % · centile 7 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- XEN
- Statut NVD
- Deferred
Description
There are multiple issues. 1. Updates to the XAPI database sanitise input strings, but try generating the notification using the unsanitised input. This causes the database's event thread to terminate and cease further processing. 2. XAPI's UTF-8 encoder implements v3.0 of the Unicode spec, but XAPI uses libraries which conform to the stricter v3.1 of the Unicode spec. This causes some strings to be accepted as valid UTF-8 by XAPI, but rejected by other libraries in use. Notably, such strings can be entered into the database, after which the database can no longer be loaded. 3. There is no input sanitisation for Map/Set updates on objects in the XAPI database.
Faiblesses (CWE)
- CWE-20 — Validation d'entrée incorrecte
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 4.0 | CRITICAL 9.4 | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H | XEN |
| CVSS 4.0 | CRITICAL 9.4 | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD · security@xen.org (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2025-210446
- GCVE · GCVE-0-2025-58146
Avis du CERT-FR
- CERTFR-2025-AVI-0771 — Multiples vulnérabilités dans Xen · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| Xen · XAPI | affected all |
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 |