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USN-4986-3: rpcbind regression

10 June 2021

USN-4986-1 caused a regression in rpcbind.

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Releases

Packages

  • 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.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 18.04

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