CVE-2021-20257: fallo en QEMU
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
3Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackepss 0.4%
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 · QEMUReferencias
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