Ubuntu 5590-1: Linux kernel (OEM) vulnerability | LinuxSecurity.com
==========================================================================
Ubuntu Security Notice USN-5590-1
August 30, 2022

linux-oem-5.14 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS

Summary:

The system could be made to crash if it received specially crafted
network traffic.

Software Description:
- linux-oem-5.14: Linux kernel for OEM systems

Details:

Domingo Dirutigliano and Nicola Guerrera discovered that the netfilter
subsystem in the Linux kernel did not properly handle rules that truncated
packets below the packet header size. When such rules are in place, a
remote attacker could possibly use this to cause a denial of service
(system crash).

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS:
  linux-image-5.14.0-1050-oem     5.14.0-1050.57
  linux-image-oem-20.04           5.14.0.1050.46
  linux-image-oem-20.04b          5.14.0.1050.46
  linux-image-oem-20.04c          5.14.0.1050.46
  linux-image-oem-20.04d          5.14.0.1050.46

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
  https://ubuntu.com/security/notices/USN-5590-1
  CVE-2022-36946

Package Information:
  https://launchpad.net/ubuntu/+source/linux-oem-5.14/5.14.0-1050.57

Ubuntu 5590-1: Linux kernel (OEM) vulnerability

August 30, 2022

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS Summary: The system could be made to crash if it received specially crafted network traffic. Software Description: - linux-oem-5.14: Linux kernel for OEM systems Details: Domingo Dirutigliano and Nicola Guerrera discovered that the netfilter subsystem in the Linux kernel did not properly handle rules that truncated packets below the packet header size. When such rules are in place, a remote attacker could possibly use this to cause a denial of service (system crash).

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: linux-image-5.14.0-1050-oem 5.14.0-1050.57 linux-image-oem-20.04 5.14.0.1050.46 linux-image-oem-20.04b 5.14.0.1050.46 linux-image-oem-20.04c 5.14.0.1050.46 linux-image-oem-20.04d 5.14.0.1050.46 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.

References

https://ubuntu.com/security/notices/USN-5590-1

CVE-2022-36946

Severity
Ubuntu Security Notice USN-5590-1

Package Information

https://launchpad.net/ubuntu/+source/linux-oem-5.14/5.14.0-1050.57

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