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USN-4986-1: rpcbind vulnerability

9 June 2021

rpcbind could be made to consume resources and crash if it received specially crafted network traffic.



  • rpcbind - converts RPC program numbers into universal addresses


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.

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.


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