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AUSCERT External Security Bulletin Redistribution
ESB-2020.3292
USN-4538-1: PackageKit vulnerabilities
25 September 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: PackageKit
Publisher: Ubuntu
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Increased Privileges -- Existing Account
Reduced Security -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-16122 CVE-2020-16121
Original Bulletin:
https://usn.ubuntu.com/4538-1/
Comment: This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running PackageKit check for an updated version of the software for
their operating system.
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USN-4538-1: PackageKit vulnerabilities
24 September 2020
Several security issues were fixed in PackageKit.
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Packages
o packagekit - Provides a package management service
Details
Vaisha Bernard discovered that PackageKit incorrectly handled certain
methods. A local attacker could use this issue to learn the MIME type of
any file on the system. (CVE-2020-16121)
Sami Niemimaki discovered that PackageKit incorrectly handled local deb
packages. A local user could possibly use this issue to install untrusted
packages, contrary to expectations. (CVE-2020-16122)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o packagekit - 1.1.13-2ubuntu1.1
Ubuntu 18.04
o packagekit - 1.1.9-1ubuntu2.18.04.6
Ubuntu 16.04
o packagekit - 0.8.17-4ubuntu6~gcc5.4ubuntu1.5
After a standard system update you need to reboot your computer to make all
the necessary changes.
References
o CVE-2020-16121
o CVE-2020-16122
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