CVE-2019-14284

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.

Category

6.2
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.05%
Vendor Advisory debian.org Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory kernel.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.3 release notes vendor advisory
https://github.com/torvalds/linux/commit/f3554aeb991214cbfafd17d55e2bfddb50282e32 third party advisory patch
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f3554aeb991214cbfafd17d55e2bfddb50282e32 patch vendor advisory
https://www.debian.org/security/2019/dsa-4495 vendor advisory
https://seclists.org/bugtraq/2019/Aug/13 mailing list
https://seclists.org/bugtraq/2019/Aug/18 mailing list
https://www.debian.org/security/2019/dsa-4497 vendor advisory
https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html mailing list
https://seclists.org/bugtraq/2019/Aug/26 mailing list
https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html mailing list
http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html vendor advisory
https://usn.ubuntu.com/4117-1/ vendor advisory
https://usn.ubuntu.com/4114-1/ vendor advisory
https://usn.ubuntu.com/4115-1/ vendor advisory
https://usn.ubuntu.com/4116-1/ vendor advisory
https://usn.ubuntu.com/4118-1/ vendor advisory
https://security.netapp.com/advisory/ntap-20190905-0002/
http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html

Frequently Asked Questions

What is the severity of CVE-2019-14284?
CVE-2019-14284 has been scored as a medium severity vulnerability.
How to fix CVE-2019-14284?
To fix CVE-2019-14284, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-14284 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-14284 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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