Release Date: | 2019-07-26 |
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 v3.0 metrics and score provided are preliminary and subject to review.
Base Score: | 6.2 | Base Metrics: | AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Access Vector: | Local network | Attack Complexity: | Low |
Privileges Required: | None | User Interaction: | None |
Scope: | Unchanged | Confidentiality Impact: | None |
Integrity Impact: | None | Availability Impact: | High |
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 |
This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team