vulnerability

Alpine Linux: CVE-2021-20196: NULL Pointer Dereference

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
May 26, 2021
Added
Oct 1, 2024
Modified
Oct 2, 2024

Description

A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

Solution

alpine-linux-upgrade-qemu
Title
NEW

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