CWE
416 362
Advisory Published

USN-6124-1: Linux kernel (OEM) vulnerabilities

First published: Tue May 30 2023(Updated: )

Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, 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-2023-32233) Reima Ishii discovered that the nested KVM implementation for Intel x86 processors in the Linux kernel did not properly validate control registers in certain situations. An attacker in a guest VM could use this to cause a denial of service (guest crash). (CVE-2023-30456) Gwnaun Jung discovered that the SFB packet scheduling implementation in the Linux kernel contained 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-2022-3586) It was discovered that the Intel i915 graphics driver in the Linux kernel did not perform a GPU TLB flush in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-4139) It was discovered that the Xircom PCMCIA network device driver in the Linux kernel did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2023-1670) Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu Linux kernel contained a race condition when handling inode locking in some situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2023-2612)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-oem-22.04<5.17.0.1032.30
5.17.0.1032.30
=22.04
All of
ubuntu/linux-image-oem-22.04a<5.17.0.1032.30
5.17.0.1032.30
=22.04
All of
ubuntu/linux-image-5.17.0-1032-oem<5.17.0-1032.33
5.17.0-1032.33
=22.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the CVE ID for this vulnerability?

    The CVE IDs associated with this vulnerability are CVE-2023-30456, CVE-2023-32233, and CVE-2023-2612.

  • How does the vulnerability occur?

    The vulnerability occurs due to a race condition in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability.

  • What is the impact of this vulnerability?

    A local attacker could exploit this vulnerability to cause a denial of service (system crash) or possibly execute arbitrary code.

  • Which version of the Linux kernel is affected?

    The vulnerability affects Linux kernel versions 5.17.0.1032.30 and 5.17.0-1032.33 in the Ubuntu 22.04 OEM image.

  • How can I fix this vulnerability?

    To fix this vulnerability, update your system to the Linux kernel version 5.17.0.1032.30 or 5.17.0-1032.33 (or later) available for Ubuntu 22.04.

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