CVE-2021-20257
CVE-2021-20257
Vexday Risk Score
3Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS —EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Ciclo de vida
16 mar 2022Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
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.
Productos afectados
n/a · QEMU¿Quieres saber si tu infraestructura está expuesta a esto?
Hablar con TrueHacking →Referencias
https://bugzilla.redhat.com/show_bug.cgi?id=1930087https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.htmlhttps://security.gentoo.org/glsa/202208-27https://security.netapp.com/advisory/ntap-20220425-0003/https://www.openwall.com/lists/oss-security/2021/02/25/2