CWE
476
Advisory Published

USN-6206-1: Linux kernel (OEM) vulnerabilities

First published: Thu Jul 06 2023(Updated: )

Hangyu Hua discovered that the Flower classifier implementation in the Linux kernel contained an out-of-bounds write vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-35788, LP: #2023577) It was discovered that the NTFS file system implementation in the Linux kernel contained a null pointer dereference in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-4842) Seth Jenkins discovered that the Linux kernel did not properly perform address randomization for a per-cpu memory management structure. A local attacker could use this to expose sensitive information (kernel memory) or in conjunction with another kernel vulnerability. (CVE-2023-0597) It was discovered that the XFS file system implementation in the Linux kernel did not properly perform metadata validation when mounting certain images. An attacker could use this to specially craft a file system image that, when mounted, could cause a denial of service (system crash). (CVE-2023-2124) It was discovered that for some Intel processors the INVLPG instruction implementation did not properly flush global TLB entries when PCIDs are enabled. An attacker could use this to expose sensitive information (kernel memory) or possibly cause undesired behaviors. (LP: #2023220)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.17.0-1034-oem<5.17.0-1034.35
5.17.0-1034.35
=22.04
All of
ubuntu/linux-image-oem-22.04<5.17.0.1034.32
5.17.0.1034.32
=22.04
All of
ubuntu/linux-image-oem-22.04a<5.17.0.1034.32
5.17.0.1034.32
=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?

    CVE-2023-35788

  • What is the severity of CVE-2023-35788?

    The severity of CVE-2023-35788 is not mentioned in the advisory.

  • How can an attacker exploit CVE-2023-35788?

    An attacker can exploit CVE-2023-35788 by causing a denial of service (system crash) or possibly executing arbitrary code.

  • Which versions of Ubuntu are affected by this vulnerability?

    Ubuntu version 22.04 is affected by this vulnerability.

  • How can I fix CVE-2023-35788?

    To fix CVE-2023-35788, update your system to version 5.17.0.1034.32 or later.

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