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=========================================================================Ubuntu Security Notice USN-5443-2
June 01, 2022

linux-gcp-5.13, linux-oracle, linux-oracle-5.13 vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 21.10
- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-gcp-5.13: Linux kernel for Google Cloud Platform (GCP) systems
- linux-oracle-5.13: Linux kernel for Oracle Cloud systems

Details:

Kyle Zeng discovered that the Network Queuing and Scheduling subsystem of
the Linux kernel did not properly perform reference counting in some
situations, leading to a use-after-free vulnerability. A local attacker
could use this to cause a denial of service (system crash) or execute
arbitrary code. (CVE-2022-29581)

Jann Horn discovered that the Linux kernel did not properly enforce seccomp
restrictions in some situations. A local attacker could use this to bypass
intended seccomp sandbox restrictions. (CVE-2022-30594)

Update instructions:

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

Ubuntu 21.10:
  linux-image-5.13.0-1030-oracle  5.13.0-1030.35
  linux-image-oracle              5.13.0.1030.30

Ubuntu 20.04 LTS:
  linux-image-5.13.0-1027-gcp     5.13.0-1027.32~20.04.1
  linux-image-5.13.0-1030-oracle  5.13.0-1030.35~20.04.1
  linux-image-gcp                 5.13.0.1027.32~20.04.1
  linux-image-oracle              5.13.0.1030.35~20.04.1

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-5443-2
  https://ubuntu.com/security/notices/USN-5443-1
  CVE-2022-29581, CVE-2022-30594

Package Information:
  https://launchpad.net/ubuntu/+source/linux-oracle/5.13.0-1030.35
  https://launchpad.net/ubuntu/+source/linux-gcp-5.13/5.13.0-1027.32~20.04.1
  https://launchpad.net/ubuntu/+source/linux-oracle-5.13/5.13.0-1030.35~20.04.1

Ubuntu 5443-2: Linux kernel vulnerabilities

June 1, 2022
Several security issues were fixed in the Linux kernel.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 21.10: linux-image-5.13.0-1030-oracle 5.13.0-1030.35 linux-image-oracle 5.13.0.1030.30 Ubuntu 20.04 LTS: linux-image-5.13.0-1027-gcp 5.13.0-1027.32~20.04.1 linux-image-5.13.0-1030-oracle 5.13.0-1030.35~20.04.1 linux-image-gcp 5.13.0.1027.32~20.04.1 linux-image-oracle 5.13.0.1030.35~20.04.1 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-5443-2

https://ubuntu.com/security/notices/USN-5443-1

CVE-2022-29581, CVE-2022-30594

Severity
June 01, 2022

Package Information

https://launchpad.net/ubuntu/+source/linux-oracle/5.13.0-1030.35 https://launchpad.net/ubuntu/+source/linux-gcp-5.13/5.13.0-1027.32~20.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-5.13/5.13.0-1030.35~20.04.1

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