Advisory Published

USN-6767-2: Linux kernel (BlueField) vulnerabilities

First published: Tue May 14 2024(Updated: )

Chenyuan Yang discovered that the RDS Protocol implementation in the Linux kernel contained an out-of-bounds read vulnerability. An attacker could use this to possibly cause a denial of service (system crash). (CVE-2024-23849) Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.4.0-1084-bluefield<5.4.0-1084.91
5.4.0-1084.91
Ubuntu=20.04
All of
ubuntu/linux-image-bluefield<5.4.0.1084.80
5.4.0.1084.80
Ubuntu=20.04

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-6767-2?

    USN-6767-2 is classified as a critical vulnerability due to its potential to cause denial of service.

  • How do I fix USN-6767-2?

    You can fix USN-6767-2 by updating to the recommended package versions for Ubuntu 20.04, specifically linux-image-5.4.0-1084.91 or linux-image-bluefield-5.4.0.1084.80.

  • What causes the vulnerability noted in USN-6767-2?

    The vulnerability in USN-6767-2 is caused by an out-of-bounds read in the RDS Protocol implementation of the Linux kernel.

  • Which Ubuntu versions are affected by USN-6767-2?

    USN-6767-2 affects Ubuntu 20.04 with specific vulnerable kernel package versions.

  • Can USN-6767-2 be exploited remotely?

    Yes, USN-6767-2 can potentially be exploited remotely, allowing an attacker to crash the system.

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