USN-4623-1: Pacemaker vulnerability

9 November 2020

Pacemaker could be made to run programs as an administrator.

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Releases

Packages

Details

Ken Gaillot discovered that Pacemaker incorrectly handled IPC
communications permissions. A local attacker could possibly use this issue
to bypass ACL restrictions and execute arbitrary code as root.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 20.10
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

In general, a standard system update will make all the necessary changes.

References

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Further reading