CVE-2019-19055
kernel: memory leak in the nl80211_get_ftm_responder_stats() function in net/wireless/nl80211.c allows DoS
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 5, 2019
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel. The Wireless configuration API functionality mishandles resource cleanup in nl80211_get_ftm_responder_stats function. An attacker able to trigger the resource cleanup code path could use this flaw to crash the system. The highest threat from this vulnerability is to system availability.
Statement
This issue is rated as having Moderate impact because of the preconditions needed to trigger the resource cleanup code path.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
In order to mitigate this issue it is possible to prevent the affected code from being loaded by blacklisting the kernel module cfg80211. For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278 .
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-400 · Uncontrolled Resource Consumption