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AUSCERT External Security Bulletin Redistribution
ESB-2019.1947
USN-4000-1: Corosync vulnerability
31 May 2019
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AusCERT Security Bulletin Summary
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Product: corosync
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-1084
Reference: ESB-2019.1789
ESB-2019.1089
ESB-2019.0545
ESB-2019.0246
Original Bulletin:
https://usn.ubuntu.com/4000-1/
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USN-4000-1: Corosync vulnerability
30 May 2019
corosync vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Summary
Corosync could be made to crash or execute arbitrary code if it received a
specially crafted request.
Software Description
o corosync - cluster engine daemon and utilities
Details
It was discovered that Corosync incorrectly handled certain requests. An
attacker could possibly use this issue to cause a denial of service or execute
arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 18.04 LTS
corosync - 2.4.3-0ubuntu1.1
libtotem-pg5 - 2.4.3-0ubuntu1.1
Ubuntu 16.04 LTS
corosync - 2.3.5-3ubuntu2.3
libtotem-pg5 - 2.3.5-3ubuntu2.3
To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .
After a standard system update you need to restart Corosync to make all the
necessary changes.
References
o CVE-2018-1084
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