CWE
362
Advisory Published

USN-3903-1: Linux kernel vulnerabilities

First published: Wed Mar 06 2019(Updated: )

Jason Wang discovered that the vhost net driver in the Linux kernel contained an out of bounds write vulnerability. An attacker in a guest virtual machine could use this to cause a denial of service (host system crash) or possibly execute arbitrary code in the host kernel. (CVE-2018-16880) Jann Horn discovered that the userfaultd implementation in the Linux kernel did not properly restrict access to certain ioctls. A local attacker could use this possibly to modify files. (CVE-2018-18397) Jann Horn discovered a race condition in the fork() system call in the Linux kernel. A local attacker could use this to gain access to services that cache authorizations. (CVE-2019-6133)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.18.0-16-generic-lpae<4.18.0-16.17
4.18.0-16.17
=18.10
All of
ubuntu/linux-image-4.18.0-1008-kvm<4.18.0-1008.8
4.18.0-1008.8
=18.10
All of
ubuntu/linux-image-4.18.0-16-lowlatency<4.18.0-16.17
4.18.0-16.17
=18.10
All of
ubuntu/linux-image-gke<4.18.0.1007.7
4.18.0.1007.7
=18.10
All of
ubuntu/linux-image-generic<4.18.0.16.17
4.18.0.16.17
=18.10
All of
ubuntu/linux-image-gcp<4.18.0.1007.7
4.18.0.1007.7
=18.10
All of
ubuntu/linux-image-4.18.0-16-generic<4.18.0-16.17
4.18.0-16.17
=18.10
All of
ubuntu/linux-image-azure<4.18.0.1013.14
4.18.0.1013.14
=18.10
All of
ubuntu/linux-image-4.18.0-16-snapdragon<4.18.0-16.17
4.18.0-16.17
=18.10
All of
ubuntu/linux-image-4.18.0-1013-azure<4.18.0-1013.13
4.18.0-1013.13
=18.10
All of
ubuntu/linux-image-generic-lpae<4.18.0.16.17
4.18.0.16.17
=18.10
All of
ubuntu/linux-image-snapdragon<4.18.0.16.17
4.18.0.16.17
=18.10
All of
ubuntu/linux-image-kvm<4.18.0.1008.8
4.18.0.1008.8
=18.10
All of
ubuntu/linux-image-4.18.0-1007-gcp<4.18.0-1007.8
4.18.0-1007.8
=18.10
All of
ubuntu/linux-image-lowlatency<4.18.0.16.17
4.18.0.16.17
=18.10
All of
ubuntu/linux-image-raspi2<4.18.0.1010.7
4.18.0.1010.7
=18.10
All of
ubuntu/linux-image-4.18.0-1010-raspi2<4.18.0-1010.12
4.18.0-1010.12
=18.10

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.

Read MoreStart Free Trial

Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this advisory?

    The vulnerability ID for this advisory is CVE-2018-16880.

  • What is the severity of CVE-2018-16880?

    The severity of CVE-2018-16880 is medium.

  • How does CVE-2018-16880 affect Ubuntu 18.10?

    CVE-2018-16880 affects Ubuntu 18.10 with the linux-image-4.18.0-16-generic-lpae, linux-image-4.18.0-1008-kvm, linux-image-4.18.0-16-lowlatency, linux-image-gke, linux-image-generic, linux-image-gcp, linux-image-4.18.0-16-generic, linux-image-azure, linux-image-4.18.0-16-snapdragon, linux-image-4.18.0-1013-azure, linux-image-generic-lpae, linux-image-snapdragon, linux-image-kvm, linux-image-4.18.0-1007-gcp, linux-image-lowlatency, linux-image-raspi2, and linux-image-4.18.0-1010-raspi2 packages.

  • How do I fix the CVE-2018-16880 vulnerability?

    To fix the CVE-2018-16880 vulnerability, update the linux-image-4.18.0-16-generic-lpae, linux-image-4.18.0-1008-kvm, linux-image-4.18.0-16-lowlatency, linux-image-gke, linux-image-generic, linux-image-gcp, linux-image-4.18.0-16-generic, linux-image-azure, linux-image-4.18.0-16-snapdragon, linux-image-4.18.0-1013-azure, linux-image-generic-lpae, linux-image-snapdragon, linux-image-kvm, linux-image-4.18.0-1007-gcp, linux-image-lowlatency, linux-image-raspi2, and linux-image-4.18.0-1010-raspi2 packages to the specified remedy versions.

  • What is the Common Weakness Enumeration (CWE) ID associated with this vulnerability?

    The CWE ID associated with this vulnerability is CWE-362.

Company

Resources

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.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203