Discover Government News

=========================================================================Ubuntu Security Notice USN-5493-2
July 01, 2022

linux-hwe-5.13 vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS

Summary:

The system could be made to crash under certain conditions.

Software Description:
- linux-hwe-5.13: Linux hardware enablement (HWE) kernel

Details:

It was discovered that the 8 Devices USB2CAN interface implementation in
the Linux kernel did not properly handle certain error conditions, leading
to a double-free. A local 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-5.13.0-52-generic   5.13.0-52.59~20.04.1
  linux-image-5.13.0-52-generic-64k  5.13.0-52.59~20.04.1
  linux-image-5.13.0-52-generic-lpae  5.13.0-52.59~20.04.1
  linux-image-5.13.0-52-lowlatency  5.13.0-52.59~20.04.1
  linux-image-generic-64k-hwe-20.04  5.13.0.52.59~20.04.31
  linux-image-generic-hwe-20.04   5.13.0.52.59~20.04.31
  linux-image-generic-lpae-hwe-20.04  5.13.0.52.59~20.04.31
  linux-image-lowlatency-hwe-20.04  5.13.0.52.59~20.04.31
  linux-image-virtual-hwe-20.04   5.13.0.52.59~20.04.31

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-5493-2
  https://ubuntu.com/security/notices/USN-5493-1
  CVE-2022-28388

Package Information:
  https://launchpad.net/ubuntu/+source/linux-hwe-5.13/5.13.0-52.59~20.04.1

Ubuntu 5493-2: Linux kernel (HWE) vulnerability

July 1, 2022
The system could be made to crash under certain conditions.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: linux-image-5.13.0-52-generic 5.13.0-52.59~20.04.1 linux-image-5.13.0-52-generic-64k 5.13.0-52.59~20.04.1 linux-image-5.13.0-52-generic-lpae 5.13.0-52.59~20.04.1 linux-image-5.13.0-52-lowlatency 5.13.0-52.59~20.04.1 linux-image-generic-64k-hwe-20.04 5.13.0.52.59~20.04.31 linux-image-generic-hwe-20.04 5.13.0.52.59~20.04.31 linux-image-generic-lpae-hwe-20.04 5.13.0.52.59~20.04.31 linux-image-lowlatency-hwe-20.04 5.13.0.52.59~20.04.31 linux-image-virtual-hwe-20.04 5.13.0.52.59~20.04.31 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-5493-2

https://ubuntu.com/security/notices/USN-5493-1

CVE-2022-28388

Severity
July 01, 2022

Package Information

https://launchpad.net/ubuntu/+source/linux-hwe-5.13/5.13.0-52.59~20.04.1

Related News