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USN-4986-2: rpcbind vulnerability

9 June 2021

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

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Releases

Packages

  • rpcbind - converts RPC program numbers into universal addresses

Details

USN-4986-1 fixed a vulnerability in rpcbind. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

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 16.04
Ubuntu 14.04

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

References

Related notices