CVE-2019-19063
kernel: Two memory leaks in the rtl_usb_probe() function in drivers/net/wireless/realtek/rtlwifi/usb.c allow for a DoS
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · November 21, 2019
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel. The rtl_usb_probe function mishandles resource cleanup on error. An attacker able to induce the error conditions 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 Low impact because of the preconditions needed to trigger the resource cleanup code path (physical access).
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 rtl8192cu. For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278 .
CVSS / CWE
CVSS 3.1 · 4.6CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-400 · Uncontrolled Resource Consumption