CWE
416 362
Advisory Published

USN-6572-1: Linux kernel (Azure) vulnerabilities

First published: Tue Jan 09 2024(Updated: )

Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-31085) Bien Pham discovered that the netfiler subsystem in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local user could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4244) Maxim Levitsky discovered that the KVM nested virtualization (SVM) implementation for AMD processors in the Linux kernel did not properly handle x2AVIC MSRs. An attacker in a guest VM could use this to cause a denial of service (host kernel crash). (CVE-2023-5090) It was discovered that the SMB network file sharing protocol implementation in the Linux kernel did not properly handle certain error conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5345) Murray McAllister discovered that the VMware Virtual GPU DRM driver in the Linux kernel did not properly handle memory objects when storing surfaces, leading to a use-after-free vulnerability. A local attacker in a guest VM could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5633)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-6.5.0-1009-azure<6.5.0-1009.9
6.5.0-1009.9
Ubuntu=23.10
All of
ubuntu/linux-image-6.5.0-1009-azure-fde<6.5.0-1009.9
6.5.0-1009.9
Ubuntu=23.10
All of
ubuntu/linux-image-azure<6.5.0.1009.11
6.5.0.1009.11
Ubuntu=23.10
All of
ubuntu/linux-image-azure-fde<6.5.0.1009.11
6.5.0.1009.11
Ubuntu=23.10

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-6572-1?

    USN-6572-1 is classified as a high severity vulnerability that can lead to a system crash.

  • How do I fix USN-6572-1?

    To fix USN-6572-1, update to the latest kernel version as specified in the advisory for your Ubuntu installation.

  • Who discovered the vulnerabilities in USN-6572-1?

    The vulnerabilities in USN-6572-1 were discovered by Yu Hao and Bien Pham.

  • What can a local privileged attacker do with USN-6572-1?

    A local privileged attacker could exploit USN-6572-1 to cause a denial of service, resulting in a system crash.

  • Which versions of Ubuntu are affected by USN-6572-1?

    USN-6572-1 affects Ubuntu 23.10, particularly specific kernel package versions.

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