CWE
416 362
Advisory Published

USN-6443-1: Linux kernel (OEM) vulnerabilities

First published: Thu Oct 19 2023(Updated: )

Kyle Zeng discovered that the networking stack implementation in the Linux kernel did not properly validate skb object size in certain conditions. An attacker could use this cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-42752) Kyle Zeng discovered that the IPv4 Resource Reservation Protocol (RSVP) classifier implementation in the Linux kernel contained an out-of-bounds read vulnerability. A local attacker could use this to cause a denial of service (system crash). Please note that kernel packet classifier support for RSVP has been removed to resolve this vulnerability. (CVE-2023-42755) Kyle Zeng discovered that the netfilter subsystem in the Linux kernel contained a race condition in IP set operations in certain situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-42756) Alex Birnberg discovered that the netfilter subsystem in the Linux kernel did not properly validate register length, leading to an out-of- bounds write vulnerability. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-4881) Kevin Rich discovered that the netfilter subsystem in the Linux kernel did not properly handle removal of rules from chain bindings in certain circumstances, 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-2023-5197)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-6.1.0-1024-oem<6.1.0-1024.24
6.1.0-1024.24
Ubuntu Ubuntu=22.04
All of
ubuntu/linux-image-oem-22.04<6.1.0.1024.25
6.1.0.1024.25
Ubuntu Ubuntu=22.04
All of
ubuntu/linux-image-oem-22.04a<6.1.0.1024.25
6.1.0.1024.25
Ubuntu Ubuntu=22.04
All of
ubuntu/linux-image-oem-22.04c<6.1.0.1024.25
6.1.0.1024.25
Ubuntu Ubuntu=22.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID of this advisory?

    The vulnerability ID of this advisory is USN-6443-1.

  • What is the name of the vulnerability described in this advisory?

    The vulnerability described in this advisory is a Linux kernel (OEM) vulnerabilities.

  • What is the severity of the vulnerability?

    The severity of the vulnerability is not specified in the provided information.

  • How can this vulnerability be exploited?

    This vulnerability can be exploited by a local user to cause a denial of service (system crash) or possibly execute arbitrary code.

  • How do I fix this vulnerability?

    To fix this vulnerability, you should update the affected software to the specified version or apply the recommended fix provided by the software vendor.

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