CWE
416 476 362
Advisory Published

USN-6461-1: Linux kernel (OEM) vulnerabilities

First published: Tue Oct 31 2023(Updated: )

Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-31085) Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service (paravirtualized device unavailability). (CVE-2023-34324) Lucas Leong discovered that the netfilter subsystem in the Linux kernel did not properly validate some attributes passed from userspace. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2023-39189) Bien Pham discovered that the netfiler subsystem in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local user could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4244) Kyle Zeng discovered that the IPv4 implementation in the Linux kernel did not properly handle socket buffers (skb) when performing IP routing in certain circumstances, leading to a null pointer dereference vulnerability. A privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-42754) It was discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel did not properly handle network packets in certain 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-2023-4921) It was discovered that the SMB network file sharing protocol implementation in the Linux kernel did not properly handle certain 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-2023-5345)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-6.1.0-1025-oem<6.1.0-1025.25
6.1.0-1025.25
=22.04
All of
ubuntu/linux-image-oem-22.04<6.1.0.1025.26
6.1.0.1025.26
=22.04
All of
ubuntu/linux-image-oem-22.04a<6.1.0.1025.26
6.1.0.1025.26
=22.04
All of
ubuntu/linux-image-oem-22.04c<6.1.0.1025.26
6.1.0.1025.26
=22.04

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2023-31085?

    The severity of CVE-2023-31085 is high.

  • How can a local privileged attacker exploit CVE-2023-31085?

    A local privileged attacker can exploit CVE-2023-31085 to cause a denial of service (system crash).

  • What is the recommended remedy for CVE-2023-31085?

    The recommended remedy for CVE-2023-31085 is to update to Linux kernel version 6.1.0-1025.25 or higher.

  • What is the severity of the Xen event channel vulnerability?

    The severity of the Xen event channel vulnerability is not provided in the description.

  • How can I fix the Xen event channel vulnerability?

    The fix for the Xen event channel vulnerability is not provided in the description.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203