CVE-2019-7303

A vulnerability in the seccomp filters of Canonical snapd before version 2.37.4 allows a strict mode snap to insert characters into a terminal on a 64-bit host. The seccomp rules were generated to match 64-bit ioctl(2) commands on a 64-bit platform; however, the Linux kernel only uses the lower 32 bits to determine which ioctl(2) commands to run. This issue affects: Canonical snapd versions prior to 2.37.4.

A vulnerability in the seccomp filters of Canonical snapd before version 2.37.4 allows a strict mode snap to insert characters into a terminal on a 64-bit host. The seccomp rules were generated to match 64-bit ioctl(2) commands on a 64-bit platform; however, the Linux kernel only uses the lower 32 bits to determine which ioctl(2) commands to run. This issue affects: Canonical snapd versions prior to 2.37.4.

Una vulnerabilidad en los filtros seccomp de Canonical snapd anterior a la versión 2.37.4 permite un ajuste de modo estricto para introducir caracteres en un terminal en un host de 64 bits. Las reglas de seccomp se generaron para que coincidieran con los comandos ioctl (2) de 64 bits en una plataforma de 64 bits; sin embargo, el kernel de Linux solo utiliza los bits inferiores 32 para determinar qué comandos ioctl (2) ejecutar. Este problema afecta a: las versiones anteriores a 2.37.4 de Canonical snapd.