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AUSCERT External Security Bulletin Redistribution
ESB-2021.2085
rpcbind vulnerability
10 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
CVE Names: CVE-2017-8779
Reference: ESB-2017.1315
ESB-2017.1310
ESB-2017.1278
Original Bulletin:
https://ubuntu.com/security/notices/USN-4986-2
https://ubuntu.com/security/notices/USN-4986-1
Comment: This bulletin contains two (2) Ubuntu security advisories.
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USN-4986-2: rpcbind vulnerability
09 June 2021
rpcbind could be made to consume resources and crash if it received
specially crafted network traffic.
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. 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
o rpcbind - 0.2.3-0.2ubuntu0.16.04.1+esm1
Available with UA Infra or UA Desktop
Ubuntu 14.04
o rpcbind - 0.2.1-2ubuntu2.2+esm1
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 CVE-2017-8779
Related notices
o USN-3759-1 : libtirpc, libtirpc1, libtirpc-dev
o USN-3759-2 : libtirpc, libtirpc1, libtirpc-dev
o USN-4986-1 : rpcbind
- ------------------------------------------------------------------------------------------------------------------------------
USN-4986-1: rpcbind vulnerability
09 June 2021
rpcbind could be made to consume resources and crash if it received
specially crafted network traffic.
Releases
o Ubuntu 18.04 LTS
Packages
o rpcbind - converts RPC program numbers into universal addresses
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 - 0.2.3-0.6ubuntu0.18.04.2
After a standard system update you need to reboot your computer to make
all the necessary changes.
References
o CVE-2017-8779
Related notices
o USN-3759-1 : libtirpc-dev, libtirpc1, libtirpc
o USN-3759-2 : libtirpc-dev, libtirpc1, libtirpc
o USN-4986-2 : rpcbind
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