CWE
416 362
Advisory Published

USN-6249-1: Linux kernel (OEM) vulnerabilities

First published: Tue Jul 25 2023(Updated: )

Ruihan Li discovered that the memory management subsystem in the Linux kernel contained a race condition when accessing VMAs in certain conditions, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2023-3269) Querijn Voet discovered that a race condition existed in the io_uring subsystem in the Linux kernel, 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-2023-3389)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-oem-22.04c<6.1.0.1017.17
6.1.0.1017.17
=22.04
All of
ubuntu/linux-image-6.1.0-1017-oem<6.1.0-1017.17
6.1.0-1017.17
=22.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-6249-1?

    The severity of USN-6249-1 is not specified in the description.

  • How can a local attacker exploit the vulnerability in USN-6249-1?

    A local attacker can exploit the vulnerability in USN-6249-1 to cause a denial of service (system crash) or execute arbitrary code.

  • Which versions of Ubuntu are affected by USN-6249-1?

    Versions 22.04 of Ubuntu with the specified Linux kernel versions are affected by USN-6249-1.

  • What is the Common Weakness Enumeration (CWE) ID for USN-6249-1?

    The CWE IDs for USN-6249-1 are CWE-416 and CWE-362.

  • Where can I find more information about USN-6249-1?

    You can find more information about USN-6249-1 at the following references: [CVE-2023-3389](https://ubuntu.com/security/CVE-2023-3389), [CVE-2023-3269](https://ubuntu.com/security/CVE-2023-3269), [USN-6246-1](https://ubuntu.com/security/notices/USN-6246-1).

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