CWE
416 476 362
Advisory Published

USN-6415-1: Linux kernel (OEM) vulnerabilities

First published: Wed Oct 04 2023(Updated: )

Daniel Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-channel attack. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2023-20569) 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) It was discovered that the USB subsystem in the Linux kernel contained a race condition while handling device descriptors in certain situations, leading to a out-of-bounds read vulnerability. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-37453) Lin Ma discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a null pointer dereference vulnerability in some situations. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-3772) Lin Ma discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel did not properly initialize a policy data structure, leading to an out-of-bounds vulnerability. A local privileged attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2023-3773) Kyle Zeng discovered that the netfiler subsystem in the Linux kernel did not properly calculate array offsets, leading to a out-of-bounds write vulnerability. A local user could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-42753) Bing-Jhong Billy Jheng discovered that the Unix domain socket implementation in the Linux kernel contained a race condition in certain situations, 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-2023-4622) Budimir Markovic discovered that the qdisc implementation in the Linux kernel did not properly validate inner classes, 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-2023-4623)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-6.1.0-1023-oem<6.1.0-1023.23
6.1.0-1023.23
Ubuntu Ubuntu=22.04
All of
ubuntu/linux-image-oem-22.04a<6.1.0.1023.24
6.1.0.1023.24
Ubuntu Ubuntu=22.04
All of
ubuntu/linux-image-oem-22.04c<6.1.0.1023.24
6.1.0.1023.24
Ubuntu Ubuntu=22.04

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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-6415-1.

  • What are the affected software versions?

    The affected software versions are Ubuntu Linux kernel 6.1.0-1023.23 and 6.1.0.1023.24 in the OEM variant.

  • What is the severity of this vulnerability?

    The severity of this vulnerability is not specified in the advisory.

  • How can I fix this vulnerability?

    To fix this vulnerability, you should update your Ubuntu Linux kernel to version 6.1.0-1023.24 or later.

  • Where can I find more information about this vulnerability?

    You can find more information about this vulnerability on the Ubuntu Security website using the provided CVE links: CVE-2023-3773, CVE-2023-3772, and CVE-2023-20569.

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