CVE Database›Document archive›CVE-2019-19058

CVE-2019-19058

kernel: A memory leak in the alloc_sgtable() function in drivers/net/wireless/intel/iwlwifi/fw/dbg.c allows for a DoS

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Severity

Low

Red Hat Product Security

4.7

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 Intel Wireless WiFi MVM Firmware driver mishandles resource cleanup during device coredump. An attacker able to trigger the device coredump and system-wide out of memory conditions at the same time 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 (system-wide out-of-memory condition).

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 iwlmvm. For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278 .

CVSS / CWE

CVSS 3.1 · 4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-400 · Uncontrolled Resource Consumption