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CVE-2019-14284

6.2 · MEDIUM

In the Linux kernel before 5.2.3, drivers/block/floppy.c allows a denial of service by setup_format_params division-by-zero.

Published Jul 26, 2019CWE-369EPSS 0.70%

Overview

CVE-2019-14284 is a medium-severity vulnerability. It was published on July 26, 2019 and has a CVSS 3.0 base score of 6.2 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 6.2, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.opensuse.org/opensuse-security-announce/2019-08/msg00055.htmlReflists.opensuse.org/opensuse-security-announce/2019-08/msg00056.htmlRefpacketstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.htmlRefpacketstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.htmlRefpacketstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.htmlRefcdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.3Refgit.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f3554aeb991214cbfafd17d55e2bfddb50282e32GitHubgithub.com/torvalds/linux/commit/f3554aeb991214cbfafd17d55e2bfddb50282e32Reflists.debian.org/debian-lts-announce/2019/08/msg00016.htmlReflists.debian.org/debian-lts-announce/2019/08/msg00017.html

How CyberStrike helps

Frequently asked questions

What is CVE-2019-14284?

CVE-2019-14284 is a medium-severity vulnerability. It was published on July 26, 2019 and has a CVSS 3.0 base score of 6.2 (MEDIUM).

How severe is CVE-2019-14284?

This vulnerability has a CVSS 3.0 base score of 6.2, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-14284?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-14284?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-14284 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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