CWE
476 362
Advisory Published

USN-4346-1: Linux kernel vulnerabilities

First published: Wed Apr 29 2020(Updated: )

It was discovered that the QLogic Fibre Channel driver in the Linux kernel did not properly check for error, leading to a NULL pointer dereference. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-16233) It was discovered that the Intel Wi-Fi driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-16234) Tristan Madani discovered that the block I/O tracing implementation in the Linux kernel contained a race condition. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2019-19768) It was discovered that the virtual terminal implementation in the Linux kernel contained a race condition. A local attacker could possibly use this to cause a denial of service (system crash) or expose sensitive information. (CVE-2020-8648) Jordy Zomer discovered that the floppy driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2020-9383)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.4.0-1070-kvm<4.4.0-1070.77
4.4.0-1070.77
Ubuntu Linux=16.04
All of
ubuntu/linux-image-4.4.0-1106-aws<4.4.0-1106.117
4.4.0-1106.117
Ubuntu Linux=16.04
All of
ubuntu/linux-image-4.4.0-1132-raspi2<4.4.0-1132.141
4.4.0-1132.141
Ubuntu Linux=16.04
All of
ubuntu/linux-image-4.4.0-1136-snapdragon<4.4.0-1136.144
4.4.0-1136.144
Ubuntu Linux=16.04
All of
ubuntu/linux-image-4.4.0-178-generic<4.4.0-178.208
4.4.0-178.208
Ubuntu Linux=16.04
All of
ubuntu/linux-image-4.4.0-178-generic-lpae<4.4.0-178.208
4.4.0-178.208
Ubuntu Linux=16.04
All of
ubuntu/linux-image-4.4.0-178-lowlatency<4.4.0-178.208
4.4.0-178.208
Ubuntu Linux=16.04
All of
ubuntu/linux-image-4.4.0-178-powerpc-e500mc<4.4.0-178.208
4.4.0-178.208
Ubuntu Linux=16.04
All of
ubuntu/linux-image-4.4.0-178-powerpc-smp<4.4.0-178.208
4.4.0-178.208
Ubuntu Linux=16.04
All of
ubuntu/linux-image-4.4.0-178-powerpc64-emb<4.4.0-178.208
4.4.0-178.208
Ubuntu Linux=16.04
All of
ubuntu/linux-image-4.4.0-178-powerpc64-smp<4.4.0-178.208
4.4.0-178.208
Ubuntu Linux=16.04
All of
ubuntu/linux-image-aws<4.4.0.1106.110
4.4.0.1106.110
Ubuntu Linux=16.04
All of
ubuntu/linux-image-generic<4.4.0.178.186
4.4.0.178.186
Ubuntu Linux=16.04
All of
ubuntu/linux-image-generic-lpae<4.4.0.178.186
4.4.0.178.186
Ubuntu Linux=16.04
All of
ubuntu/linux-image-kvm<4.4.0.1070.70
4.4.0.1070.70
Ubuntu Linux=16.04
All of
ubuntu/linux-image-lowlatency<4.4.0.178.186
4.4.0.178.186
Ubuntu Linux=16.04
All of
ubuntu/linux-image-powerpc-e500mc<4.4.0.178.186
4.4.0.178.186
Ubuntu Linux=16.04
All of
ubuntu/linux-image-powerpc-smp<4.4.0.178.186
4.4.0.178.186
Ubuntu Linux=16.04
All of
ubuntu/linux-image-powerpc64-emb<4.4.0.178.186
4.4.0.178.186
Ubuntu Linux=16.04
All of
ubuntu/linux-image-powerpc64-smp<4.4.0.178.186
4.4.0.178.186
Ubuntu Linux=16.04
All of
ubuntu/linux-image-raspi2<4.4.0.1132.132
4.4.0.1132.132
Ubuntu Linux=16.04
All of
ubuntu/linux-image-snapdragon<4.4.0.1136.128
4.4.0.1136.128
Ubuntu Linux=16.04
All of
ubuntu/linux-image-virtual<4.4.0.178.186
4.4.0.178.186
Ubuntu Linux=16.04
All of
ubuntu/linux-image-4.4.0-1066-aws<4.4.0-1066.70
4.4.0-1066.70
Ubuntu Linux=14.04
All of
ubuntu/linux-image-4.4.0-178-generic<4.4.0-178.208~14.04.1
4.4.0-178.208~14.04.1
Ubuntu Linux=14.04
All of
ubuntu/linux-image-4.4.0-178-lowlatency<4.4.0-178.208~14.04.1
4.4.0-178.208~14.04.1
Ubuntu Linux=14.04
All of
ubuntu/linux-image-aws<4.4.0.1066.67
4.4.0.1066.67
Ubuntu Linux=14.04
All of
ubuntu/linux-image-generic-lts-xenial<4.4.0.178.157
4.4.0.178.157
Ubuntu Linux=14.04
All of
ubuntu/linux-image-lowlatency-lts-xenial<4.4.0.178.157
4.4.0.178.157
Ubuntu Linux=14.04
All of
ubuntu/linux-image-virtual-lts-xenial<4.4.0.178.157
4.4.0.178.157
Ubuntu Linux=14.04

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-4346-1?

    The severity of USN-4346-1 is classified as a denial of service due to the potential for system crashes through a NULL pointer dereference.

  • How do I fix USN-4346-1?

    To fix USN-4346-1, you should update to the recommended linux-image packages provided in the advisory.

  • What versions are affected by USN-4346-1?

    USN-4346-1 affects various versions of Ubuntu 16.04, specifically those using certain linux-image packages.

  • Who can exploit the vulnerability seen in USN-4346-1?

    A local attacker can potentially exploit the vulnerability in USN-4346-1, causing a denial of service.

  • What systems need to be patched for USN-4346-1?

    Any system running an affected version of Ubuntu 16.04 with specific linux-image packages installed should be patched for USN-4346-1.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203