CVE-2019-14901

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 16.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-11-29 · updated 2026-06-17
Weakness: CWE-122

Description

A heap overflow flaw was found in the Linux kernel, all versions 3.x.x and 4.x.x before 4.18.0, in Marvell WiFi chip driver. The vulnerability allows a remote attacker to cause a system crash, resulting in a denial of service, or execute arbitrary code. The highest threat with this vulnerability is with the availability of the system. If code execution occurs, the code will run with the permissions of root. This will affect both confidentiality and integrity of files on the system.

Affected products

Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 19.10
Debian Linux: 8.0
Fedoraproject Fedora: 30, 31
Linux kernel: from 3.15 before 3.16.83; from 3.17 before 4.4.217; from 4.5 before 4.9.217; from 4.10 before 4.14.164; from 4.15 before 4.19.95; from 4.20 before 5.4.11 — fixed in 3.16.83, 4.14.164, 4.19.95, 4.4.217, 4.9.217, 5.4.11

How to fix

Upgrade to a fixed version: Linux kernel 3.16.83, 4.14.164, 4.19.95, 4.4.217. Check the vendor advisory for mitigations.

References

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