CVE-2019-14896

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 8.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-11-27 · updated 2026-06-17
Weakness: CWE-122

Description

A heap-based buffer overflow vulnerability was found in the Linux kernel, version kernel-2.6.32, in Marvell WiFi chip driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP.

Affected products

Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 19.10
Debian Linux: 8.0
Fedoraproject Fedora: 30, 31
Linux kernel: from 2.6.32 before 3.16.83; from 3.17 before 4.4.212; from 4.5 before 4.9.212; from 4.10 before 4.14.169; from 4.15 before 4.19.100; from 4.20 before 5.4.16 — fixed in 3.16.83, 4.14.169, 4.19.100, 4.4.212, 4.9.212, 5.4.16
Red Hat Enterprise Linux: 6.0

How to fix

Upgrade to a fixed version: Linux kernel 3.16.83, 4.14.169, 4.19.100, 4.4.212. Check the vendor advisory for mitigations.

References

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