CVE-2019-19048

Una pérdida de memoria en la función crypto_reportstat() en el archivo drivers/virt/vboxguest/vboxguest_utils.c en el kernel de Linux versiones anteriores a la versión 5.3.9, permite a atacantes causar una denegación de servicio (consumo de memoria) al desencadenar fallos de la función copy_form_user(), también se conoce como CID-e0b0cb938864 .

Jann Horn discovered that the OverlayFS and ShiftFS Drivers in the Linux kernel did not properly handle reference counting during memory mapping operations when used in conjunction with AUFS. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Nicolas Waisman discovered that the WiFi driver stack in the Linux kernel did not properly validate SSID lengths. A physically proximate attacker could use this to cause a denial of service. Various other issues were also addressed.