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Debian: CVE-2019-14284: linux -- security update

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Debian: CVE-2019-14284: linux -- security update

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
07/26/2019
Created
08/15/2019
Added
08/14/2019
Modified
07/07/2020

Description

In the Linux kernel before 5.2.3, drivers/block/floppy.c allows a denial of service by setup_format_params division-by-zero. Two consecutive ioctls can trigger the bug: the first one should set the drive geometry with .sect and .rate values that make F_SECT_PER_TRACK be zero. Next, the floppy format operation should be called. It can be triggered by an unprivileged local user even when a floppy disk has not been inserted. NOTE: QEMU creates the floppy device by default.

Solution(s)

  • debian-upgrade-linux

References

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