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    Ubuntu 4538-1: PackageKit vulnerabilities

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    Several security issues were fixed in PackageKit.
    Ubuntu Security Notice USN-4538-1
    September 24, 2020
    packagekit vulnerabilities
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 20.04 LTS
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    Several security issues were fixed in PackageKit.
    Software Description:
    - packagekit: Provides a package management service
    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 Niemimäki 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 LTS:
      packagekit                      1.1.13-2ubuntu1.1
    Ubuntu 18.04 LTS:
      packagekit                      1.1.9-1ubuntu2.18.04.6
    Ubuntu 16.04 LTS:
      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.
      CVE-2020-16121, CVE-2020-16122
    Package Information:


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