CVE-2019-14284

CVE Details

Release Date:	2019-07-26
Impact:	None	What is this?

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.

See more information about CVE-2019-14284 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	6.2
Vector String:	CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version:	3.0
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	None
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel-uek)	ELSA-2019-4855	2019-11-21
Oracle Linux version 6 (dtrace-modules-3.8.13-118.40.1.el6uek)	ELSA-2019-4854	2019-11-20
Oracle Linux version 6 (kernel-uek)	ELSA-2019-4850	2019-11-20
Oracle Linux version 6 (kernel-uek)	ELSA-2019-4854	2019-11-20
Oracle Linux version 6 (kernel-uek)	ELSA-2019-4855	2019-11-21
Oracle Linux version 7 (dtrace-modules-3.8.13-118.40.1.el7uek)	ELSA-2019-4854	2019-11-20
Oracle Linux version 7 (kernel-uek)	ELSA-2019-4836	2019-11-12
Oracle Linux version 7 (kernel-uek)	ELSA-2019-4850	2019-11-20
Oracle Linux version 7 (kernel-uek)	ELSA-2019-4854	2019-11-20
Oracle VM version 3.4 (kernel-uek)	OVMSA-2019-0056	2019-11-21