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Ubuntu 18.04 LTS USN-4986-3: Moderate Rpcbind Denial of Service

ubuntu
Calendar Grey June 10, 2021
Dist Ubuntu Esm H88
Enhance the handling of rpcbind bugs and denial of service flaws in Ubuntu 18.04 LTS.
USN-4986-1 caused a regression in rpcbind.

Summary

USN-4986-1 caused a regression in rpcbind.

Software Description:

- rpcbind: converts RPC program numbers into universal addresses

Details:

USN-4986-1 fixed a vulnerability in rpcbind. The update caused a regression

resulting in rpcbind crashing in certain environments. This update fixes

the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that rpcbind incorrectly handled certain large data

sizes. A remote attacker could use this issue to cause rpcbind to consume

resources, leading to a denial of service.

Topics%20covered

Topics Covered

security advisory denial of service moderate severity ubuntu rpcbind

Update Instructions

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

Ubuntu 18.04 LTS:
  rpcbind                         0.2.3-0.6ubuntu0.18.04.3

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

References

https://ubuntu.com/security/notices/USN-4986-3

https://ubuntu.com/security/notices/USN-4986-1

https://bugs.launchpad.net/ubuntu/+source/rpcbind/+bug/1931507

June 10, 2021

Topics%20covered

Topics Covered

security advisory denial of service moderate severity ubuntu rpcbind

Package Information

https://launchpad.net/ubuntu/+source/rpcbind/0.2.3-0.6ubuntu0.18.04.3

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