CVE-2021-3929
CVE-2021-3929
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.
CVSS 8.2 · Alta · EPSS 0,7% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: system
Productos y versiones afectados
qemu
- Versiones
- Fixed in qemu-kvm 7.0.0-rc0: Afectada
Sin corrección publicada
qemu Debian:12
- Intervalos de versiones afectados
- ECOSYSTEM: < 1:7.0+dfsg-1
Actualiza a 1:7.0+dfsg-1
qemu Debian:13
- Intervalos de versiones afectados
- ECOSYSTEM: < 1:7.0+dfsg-1
Actualiza a 1:7.0+dfsg-1
qemu Debian:14
- Intervalos de versiones afectados
- ECOSYSTEM: < 1:7.0+dfsg-1
Actualiza a 1:7.0+dfsg-1
qemu Ubuntu:22.04:LTS
- Versiones
- 1:6.0+dfsg-2expubuntu1
- 1:6.0+dfsg-2expubuntu2
- 1:6.0+dfsg-2expubuntu4
- 1:6.2+dfsg-2ubuntu5
- 1:6.2+dfsg-2ubuntu6
- 1:6.2+dfsg-2ubuntu6.1
- Intervalos de versiones afectados
- ECOSYSTEM: < 1:6.2+dfsg-2ubuntu6.2
Actualiza a 1:6.2+dfsg-2ubuntu6.2
Fuentes originales
- https://gitlab.com/qemu-project/qemu/-/issues/556
- https://bugzilla.redhat.com/show_bug.cgi?id=2020298
- https://access.redhat.com/security/cve/CVE-2021-3929
- https://gitlab.com/qemu-project/qemu/-/issues/782
- https://gitlab.com/qemu-project/qemu/-/commit/736b01642d85be832385
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XHNN7QJCEQH7AQG5AQP2GEFAQE6K635I/
- https://security.netapp.com/advisory/ntap-20250228-0010/
- https://nvd.nist.gov/vuln/detail/CVE-2021-3929