PT-2019-4776 · Linux+6 · Linux Kernel+6

Published 2019-09-09 · Updated 2026-03-13 · CVE-2019-16234

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel version 5.2.14

Description The issue is related to the alloc workqueue component in the Linux kernel, which can lead to a NULL pointer dereference. This can potentially allow a remote attacker to cause a denial of service. The problem is specifically located in the drivers/net/wireless/intel/iwlwifi/pcie/trans.c file.

Recommendations For Linux kernel version 5.2.14, ensure that the return value of alloc workqueue is properly checked to prevent NULL pointer dereferences. As a temporary workaround, consider implementing additional error checking mechanisms for the alloc workqueue function until a patch is available.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2019-2700

BDU:2020-01352

CESA-2020_1567

CESA-2020_1769

CVE-2019-16234

ECHO-82F5-1234-9CF2

OPENSUSE-SU-2019:2392-1

OPENSUSE-SU-2019:2444-1

OPENSUSE-SU-2019_2392-1

OPENSUSE-SU-2019_2444-1

OPENSUSE-SU-2024:10728-1

OPENSUSE-SU-2024:13704-1

RHSA-2020:1567

RHSA-2020:1769

RHSA-2020_1567

RHSA-2020_1769

SUSE-SU-2019:14218-1

SUSE-SU-2019:2879-1

SUSE-SU-2019:2946-1

SUSE-SU-2019:2947-1

SUSE-SU-2019:2949-1

SUSE-SU-2019:2950-1

SUSE-SU-2019:2951-1

SUSE-SU-2019:2952-1

SUSE-SU-2019:2953-1

SUSE-SU-2019:2984-1

SUSE-SU-2019:3294-1

SUSE-SU-2019:3295-1

SUSE-SU-2019_14218-1

SUSE-SU-2020:0093-1

USN-4342-1

USN-4344-1

USN-4345-1

USN-4346-1

Affected Products

Alt Linux

Centos

Debian

Linux Kernel

Red Hat

Suse

Ubuntu

References · 869

• https://osv.dev/vulnerability/SUSE-SU-2019:2879-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-16234 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4346-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4344-1 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00010.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:2951-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:0093-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4346-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-16234 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19768 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:3295-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-11884 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-16234 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:2953-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-11609 · Vendor Advisory