CVE-2021-3682
QEMU
HIGH 8.5
En bref
- Source
- NVD
- EPSS
- EPSS 2.88 % · centile 87 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- redhat
- Statut NVD
- Modified
Description
A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata, resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the host.
Faiblesses (CWE)
- CWE-763 — Libération d'un pointeur ou d'une référence invalide
Références
- https://bugzilla.redhat.com/show_bug.cgi?id=1989651
- https://security.netapp.com/advisory/ntap-20210902-0006/
- https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html
- https://www.debian.org/security/2021/dsa-4980
- 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 | HIGH 8.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 6.0 | AV:N/AC:M/Au:S/C:P/I:P/A:P | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2021-26972
- GCVE · GCVE-0-2021-3682
Avis du CERT-FR
- CERTFR-2023-AVI-0318 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*< 6.1.0cpe:2.3:a:qemu:qemu:6.1.0:rc1:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| QEMU | affected qemu 6.1.0-rc2 |
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 |