QEMU
En bref
- Source
- NVD
- EPSS
- EPSS 0.37 % · centile 31 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- redhat
- Statut NVD
- Modified
Description
An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Faiblesses (CWE)
- CWE-835 — Boucle dont la condition de sortie est inatteignable (boucle infinie)
Références
- https://www.openwall.com/lists/oss-security/2021/02/25/2
- https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html
- https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8
- https://bugzilla.redhat.com/show_bug.cgi?id=1930087
- https://security.netapp.com/advisory/ntap-20220425-0003/
- https://security.gentoo.org/glsa/202208-27
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | LOW 2.1 | AV:L/AC:L/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2021-7695
- GCVE · GCVE-0-2021-20257
Avis du CERT-FR
- CERTFR-2021-AVI-485 — Multiples vulnérabilités dans Citrix Hypervisor · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*< 6.2.0cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*cpe:2.3:a:redhat:openstack_platform:10.0:*:*:*:*:*:*:*cpe:2.3:a:redhat:openstack_platform:13.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*cpe:2.3:a:redhat:codeready_linux_builder:-:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| QEMU | affected Fixed-In v6.2.0 |
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 |