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USN-4664-1: Aptdaemon vulnerabilities

8 December 2020

Several security issues were fixed in Aptdaemon.

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Releases

Packages

  • aptdaemon - transaction based package management service

Details

Kevin Backhouse discovered that Aptdaemon incorrectly handled certain
properties. A local attacker could use this issue to test for the presence
of local files. (CVE-2020-16128)

Kevin Backhouse discovered that Aptdaemon incorrectly handled permission
checks. A local attacker could possibly use this issue to cause a denial of
service. (CVE-2020-27349)

Reduce your security exposure

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.

Learn more about Ubuntu Pro

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

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