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Ubuntu 22.04 LTS USN-5614-1 Critical: Wayland Denial of Service

ubuntu
Calendar Grey September 15, 2022
Dist Ubuntu Esm H88
Enhance your Ubuntu installation by applying the latest updates to address the Wayland security flaw, thus safeguarding against possible attacks and maintaining robust functionality.
Wayland could be made to crash or run programs.

Summary

Wayland could be made to crash or run programs.

Software Description:

- wayland: Wayland compositor infrastructure

Details:

It was discovered that Wayland incorrectly handled reference counting

certain objects. An attacker could use this issue to cause Wayland to

crash, resulting in a denial of service, or possibly execute arbitrary

code.

Topics%20covered

Topics Covered

security advisory denial of service critical software update ubuntu wayland

Update Instructions

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

Ubuntu 22.04 LTS:
  libwayland-bin                  1.20.0-1ubuntu0.1
  libwayland-client0              1.20.0-1ubuntu0.1
  libwayland-egl1                 1.20.0-1ubuntu0.1
  libwayland-server0              1.20.0-1ubuntu0.1

Ubuntu 20.04 LTS:
  libwayland-bin                  1.18.0-1ubuntu0.1
  libwayland-client0              1.18.0-1ubuntu0.1
  libwayland-egl1                 1.18.0-1ubuntu0.1
  libwayland-server0              1.18.0-1ubuntu0.1

Ubuntu 18.04 LTS:
  libwayland-bin                  1.16.0-1ubuntu1.1~18.04.4
  libwayland-client0              1.16.0-1ubuntu1.1~18.04.4
  libwayland-egl1                 1.16.0-1ubuntu1.1~18.04.4
  libwayland-server0              1.16.0-1ubuntu1.1~18.04.4

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

References

https://ubuntu.com/security/notices/USN-5614-1

CVE-2021-3782

Severity
critical
Lowest
Low
Medium
High
Critical

September 15, 2022

Topics%20covered

Topics Covered

security advisory denial of service critical software update ubuntu wayland

Package Information

https://launchpad.net/ubuntu/+source/wayland/1.20.0-1ubuntu0.1
https://launchpad.net/ubuntu/+source/wayland/1.18.0-1ubuntu0.1
https://launchpad.net/ubuntu/+source/wayland/1.16.0-1ubuntu1.1~18.04.4

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