[USN-4986-4] rpcbind regression
Leonidas S. Barbosa
leo.barbosa at canonical.com
Thu Jun 10 21:15:04 UTC 2021
Ubuntu Security Notice USN-4986-4
June 10, 2021
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM
USN-4986-1 caused a regression in rpcbind.
- rpcbind: converts RPC program numbers into universal addresses
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 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.
The problem can be corrected by updating your system to the following
Ubuntu 16.04 ESM:
Ubuntu 14.04 ESM:
After a standard system update you need to reboot your computer to make
all the necessary changes.
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