CWE
416 362
Advisory Published

USN-5660-1: Linux kernel (GCP) vulnerabilities

First published: Thu Oct 06 2022(Updated: )

It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of- bounds write. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33655) Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation in the Linux kernel did not provide sufficient randomization when calculating port offsets. An attacker could possibly use this to expose sensitive information. (CVE-2022-1012, CVE-2022-32296) Norbert Slusarek discovered that a race condition existed in the perf subsystem in the Linux kernel, resulting in a use-after-free vulnerability. A privileged local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1729) It was discovered that the device-mapper verity (dm-verity) driver in the Linux kernel did not properly verify targets being loaded into the device- mapper table. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-2503) Domingo Dirutigliano and Nicola Guerrera discovered that the netfilter subsystem in the Linux kernel did not properly handle rules that truncated packets below the packet header size. When such rules are in place, a remote attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-36946)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.4.0-1089-gcp<5.4.0-1089.97~18.04.1
5.4.0-1089.97~18.04.1
=18.04
All of
ubuntu/linux-image-gcp<5.4.0.1089.68
5.4.0.1089.68
=18.04

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.

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 USN-5660-1.

  • What is the severity of USN-5660-1?

    The severity of USN-5660-1 is not specified in the provided information.

  • How can a local attacker exploit USN-5660-1?

    A local attacker can exploit USN-5660-1 by using an out-of-bounds write to cause a denial of service or possibly execute arbitrary code.

  • Which software versions are affected by USN-5660-1?

    The affected software versions for USN-5660-1 are Ubuntu 18.04 with Linux kernel versions 5.4.0-1089.97~18.04.1 and 5.4.0.1089.68.

  • How can I fix USN-5660-1?

    To fix USN-5660-1, update the Linux kernel to version 5.4.0-1089.97~18.04.1 or 5.4.0.1089.68, depending on the affected software version.

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