CWE
119 416
Advisory Published

USN-6502-2: Linux kernel (Oracle) vulnerabilities

First published: Mon Nov 27 2023(Updated: )

Ivan D Barrera, Christopher Bednarz, Mustafa Ismail, and Shiraz Saleem discovered that the InfiniBand RDMA driver in the Linux kernel did not properly check for zero-length STAG or MR registration. A remote attacker could possibly use this to execute arbitrary code. (CVE-2023-25775) 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) Manfred Rudigier discovered that the Intel(R) PCI-Express Gigabit (igb) Ethernet driver in the Linux kernel did not properly validate received frames that are larger than the set MTU size, leading to a buffer overflow vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-45871) 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)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-6.2.0-1016-oracle<6.2.0-1016.17
6.2.0-1016.17
=23.04
All of
ubuntu/linux-image-oracle<6.2.0.1016.16
6.2.0.1016.16
=23.04

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-6502-2?

    The severity of USN-6502-2 is not specified in the given information.

  • How can a remote attacker exploit the vulnerability?

    A remote attacker can exploit the vulnerability by using the InfiniBand RDMA driver in the Linux kernel to execute arbitrary code.

  • Which versions of Linux kernel are affected by this vulnerability?

    The versions of Linux kernel affected by this vulnerability are Ubuntu 23.04 with linux-image-6.2.0-1016-oracle (version up to 6.2.0-1016.17) and Ubuntu 23.04 with linux-image-oracle (version up to 6.2.0.1016.16).

  • How can I fix the USN-6502-2 vulnerability?

    To fix the USN-6502-2 vulnerability, update the affected Linux kernel packages to the specified remedy versions: linux-image-6.2.0-1016-oracle (6.2.0-1016.17) and linux-image-oracle (6.2.0.1016.16).

  • Where can I find more information about the USN-6502-2 vulnerability?

    More information about the USN-6502-2 vulnerability can be found at the following references: [CVE-2023-25775](https://ubuntu.com/security/CVE-2023-25775), [CVE-2023-5090](https://ubuntu.com/security/CVE-2023-5090), [CVE-2023-5345](https://ubuntu.com/security/CVE-2023-5345).

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