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AUSCERT External Security Bulletin Redistribution
ESB-2021.2098
rpcbind regression
11 June 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: rpcbind
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
Original Bulletin:
https://ubuntu.com/security/notices/USN-4986-3
https://ubuntu.com/security/notices/USN-4986-4
Comment: This bulletin contains two (2) Ubuntu security advisories.
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USN-4986-3: rpcbind regression
10 June 2021
USN-4986-1 caused a regression in rpcbind.
Releases
o Ubuntu 18.04 LTS
Packages
o 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.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 18.04
o rpcbind - 0.2.3-0.6ubuntu0.18.04.3
After a standard system update you need to reboot your computer to make
all the necessary changes.
References
o https://launchpad.net/bugs/1931507
- -------------------------------------------------------------------------------------------------------------------------------
USN-4986-4: rpcbind regression
10 June 2021
USN-4986-1 caused a regression in rpcbind.
Releases
o Ubuntu 16.04 ESM
o Ubuntu 14.04 ESM
Packages
o 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 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
o rpcbind - 0.2.3-0.2ubuntu0.16.04.1+esm2
Available with UA Infra or UA Desktop
Ubuntu 14.04
o rpcbind - 0.2.1-2ubuntu2.2+esm2
Available with UA Infra or UA Desktop
After a standard system update you need to reboot your computer to make
all the necessary changes.
References
o https://launchpad.net/bugs/1931507
- --------------------------END INCLUDED TEXT--------------------
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The University of Queensland
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