CWE
416
Advisory Published

USN-6261-1: Linux kernel (IoT) vulnerabilities

First published: Fri Jul 28 2023(Updated: )

It was discovered that the IP-VLAN network driver for the Linux kernel did not properly initialize memory in some situations, leading to 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-2023-3090) Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in the Ubuntu Linux kernel did not properly perform permission checks in certain situations. A local attacker could possibly use this to gain elevated privileges. (CVE-2023-32629) It was discovered that the netfilter subsystem in the Linux kernel did not properly handle some 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-2023-3390) Tanguy Dubroca discovered that the netfilter subsystem in the Linux kernel did not properly handle certain pointer data type, leading to an out-of- bounds write vulnerability. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-35001)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.4.0-1018-iot<5.4.0-1018.19
5.4.0-1018.19
=20.04

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2023-3090?

    The severity of CVE-2023-3090 is high.

  • How does CVE-2023-3090 affect the Linux kernel?

    CVE-2023-3090 can cause a denial of service (system crash) or possibly execute arbitrary code.

  • How can I fix the Linux kernel vulnerability CVE-2023-3090?

    To fix the CVE-2023-3090 vulnerability, update the Linux kernel to version 5.4.0-1018.19 or later.

  • What is the Ubuntu version affected by CVE-2023-3090?

    Ubuntu 20.04 is affected by CVE-2023-3090.

  • Where can I find more information about CVE-2023-3090?

    You can find more information about CVE-2023-3090 on the Ubuntu security website.

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