Advisory Published

USN-6766-1: Linux kernel vulnerabilities

First published: Tue May 07 2024(Updated: )

It was discovered that the Open vSwitch implementation in the Linux kernel could overflow its stack during recursive action operations under certain conditions. A local attacker could use this to cause a denial of service (system crash). (CVE-2024-1151) Sander Wiebing, Alvise de Faveri Tron, Herbert Bos, and Cristiano Giuffrida discovered that the Linux kernel mitigations for the initial Branch History Injection vulnerability (CVE-2022-0001) were insufficient for Intel processors. A local attacker could potentially use this to expose sensitive information. (CVE-2024-2201) 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-5.15.0-1044-gkeop<5.15.0-1044.51
5.15.0-1044.51
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1054-ibm<5.15.0-1054.57
5.15.0-1054.57
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1054-nvidia<5.15.0-1054.55
5.15.0-1054.55
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1054-nvidia-lowlatency<5.15.0-1054.55
5.15.0-1054.55
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1058-gke<5.15.0-1058.63
5.15.0-1058.63
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1058-kvm<5.15.0-1058.63
5.15.0-1058.63
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1059-gcp<5.15.0-1059.67
5.15.0-1059.67
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1059-oracle<5.15.0-1059.65
5.15.0-1059.65
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-106-generic<5.15.0-106.116
5.15.0-106.116
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-106-generic-64k<5.15.0-106.116
5.15.0-106.116
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-106-generic-lpae<5.15.0-106.116
5.15.0-106.116
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-106-lowlatency<5.15.0-106.116
5.15.0-106.116
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-106-lowlatency-64k<5.15.0-106.116
5.15.0-106.116
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1063-azure<5.15.0-1063.72
5.15.0-1063.72
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1063-azure-fde<5.15.0-1063.72.1
5.15.0-1063.72.1
Ubuntu=22.04
All of
ubuntu/linux-image-azure-fde-lts-22.04<5.15.0.1063.72.41
5.15.0.1063.72.41
Ubuntu=22.04
All of
ubuntu/linux-image-azure-lts-22.04<5.15.0.1063.61
5.15.0.1063.61
Ubuntu=22.04
All of
ubuntu/linux-image-gcp-lts-22.04<5.15.0.1059.55
5.15.0.1059.55
Ubuntu=22.04
All of
ubuntu/linux-image-generic<5.15.0.106.106
5.15.0.106.106
Ubuntu=22.04
All of
ubuntu/linux-image-generic-64k<5.15.0.106.106
5.15.0.106.106
Ubuntu=22.04
All of
ubuntu/linux-image-generic-lpae<5.15.0.106.106
5.15.0.106.106
Ubuntu=22.04
All of
ubuntu/linux-image-gke<5.15.0.1058.57
5.15.0.1058.57
Ubuntu=22.04
All of
ubuntu/linux-image-gke-5.15<5.15.0.1058.57
5.15.0.1058.57
Ubuntu=22.04
All of
ubuntu/linux-image-gkeop<5.15.0.1044.43
5.15.0.1044.43
Ubuntu=22.04
All of
ubuntu/linux-image-gkeop-5.15<5.15.0.1044.43
5.15.0.1044.43
Ubuntu=22.04
All of
ubuntu/linux-image-ibm<5.15.0.1054.50
5.15.0.1054.50
Ubuntu=22.04
All of
ubuntu/linux-image-kvm<5.15.0.1058.54
5.15.0.1058.54
Ubuntu=22.04
All of
ubuntu/linux-image-lowlatency<5.15.0.106.101
5.15.0.106.101
Ubuntu=22.04
All of
ubuntu/linux-image-lowlatency-64k<5.15.0.106.101
5.15.0.106.101
Ubuntu=22.04
All of
ubuntu/linux-image-nvidia<5.15.0.1054.54
5.15.0.1054.54
Ubuntu=22.04
All of
ubuntu/linux-image-nvidia-lowlatency<5.15.0.1054.54
5.15.0.1054.54
Ubuntu=22.04
All of
ubuntu/linux-image-oracle-lts-22.04<5.15.0.1059.55
5.15.0.1059.55
Ubuntu=22.04
All of
ubuntu/linux-image-virtual<5.15.0.106.106
5.15.0.106.106
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1044-gkeop<5.15.0-1044.51~20.04.1
5.15.0-1044.51~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-5.15.0-1054-ibm<5.15.0-1054.57~20.04.1
5.15.0-1054.57~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-5.15.0-1059-gcp<5.15.0-1059.67~20.04.1
5.15.0-1059.67~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-5.15.0-1059-oracle<5.15.0-1059.65~20.04.1
5.15.0-1059.65~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-5.15.0-106-lowlatency<5.15.0-106.116~20.04.1
5.15.0-106.116~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-5.15.0-106-lowlatency-64k<5.15.0-106.116~20.04.1
5.15.0-106.116~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-5.15.0-1063-azure<5.15.0-1063.72~20.04.1
5.15.0-1063.72~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-5.15.0-1063-azure-fde<5.15.0-1063.72~20.04.1.1
5.15.0-1063.72~20.04.1.1
Ubuntu=20.04
All of
ubuntu/linux-image-azure<5.15.0.1063.72~20.04.1
5.15.0.1063.72~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-azure-cvm<5.15.0.1063.72~20.04.1
5.15.0.1063.72~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-azure-fde<5.15.0.1063.72~20.04.1.41
5.15.0.1063.72~20.04.1.41
Ubuntu=20.04
All of
ubuntu/linux-image-gcp<5.15.0.1059.67~20.04.1
5.15.0.1059.67~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-gkeop-5.15<5.15.0.1044.51~20.04.1
5.15.0.1044.51~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-ibm<5.15.0.1054.57~20.04.1
5.15.0.1054.57~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-lowlatency-64k-hwe-20.04<5.15.0.106.116~20.04.1
5.15.0.106.116~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-lowlatency-hwe-20.04<5.15.0.106.116~20.04.1
5.15.0.106.116~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-oracle<5.15.0.1059.65~20.04.1
5.15.0.1059.65~20.04.1
Ubuntu=20.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-6766-1?

    The vulnerability identified in USN-6766-1 has a severity level that poses a significant risk of denial of service to affected systems.

  • How do I fix USN-6766-1?

    To mitigate the vulnerability outlined in USN-6766-1, you should upgrade to the recommended kernel versions provided in the advisory.

  • Who is affected by USN-6766-1?

    USN-6766-1 affects Ubuntu 22.04 users running specific linux-image packages related to Open vSwitch.

  • What kind of attack can exploit USN-6766-1?

    A local attacker can exploit USN-6766-1 to perform a denial of service attack, potentially crashing the system.

  • What is the vulnerability ID associated with USN-6766-1?

    The specific vulnerability ID for the issue described in USN-6766-1 is CVE-2024-1151.

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