Ubuntu alert USN-4986-2 (rpcbind)

From:
             
 
"Leonidas S. Barbosa" <leo.barbosa@canonical.com>
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-4986-2] rpcbind vulnerability
Date:
             
 
Wed, 09 Jun 2021 16:02:19 -0300
Message-ID:
             
 
<20210609190219.GA3931601@d4rkl41n>
==========================================================================
Ubuntu Security Notice USN-4986-2
June 09, 2021

rpcbind vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

Summary:

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

Software Description:
- 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.

Update instructions:

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

Ubuntu 16.04 ESM:
  rpcbind                         0.2.3-0.2ubuntu0.16.04.1+esm1

Ubuntu 14.04 ESM:
  rpcbind                         0.2.1-2ubuntu2.2+esm1

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

References:
  https://ubuntu.com/security/notices/USN-4986-2
  https://ubuntu.com/security/notices/USN-4986-1
  CVE-2017-8779
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