CVE-2019-14284
Medium
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.
SeverityMedium
CVSS6.2
Exploit probability—
Product
Linux Kernel
PublishedJul 26, 2019
First seenJul 26, 2019
How to fix
Update
- linux linux_kernel5.2.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 5.2.3 | 5.2.3 |
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