[USN-4457-2] Software Properties vulnerability

[Leonidas S. Barbosa]

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Ubuntu Security Notice USN-4457-2
August 17, 2020

software-properties vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 ESM

Summary:

Software Properties could be made to manipulate the display.

Software Description:
- software-properties: manage the repositories that you install software from

Details:

USN-4457-1 fixed a vulnerability in Software. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

 Jason A. Donenfeld discovered that Software Properties incorrectly filtered
 certain escape sequences when displaying PPA descriptions. If a user were
 tricked into adding an arbitrary PPA, a remote attacker could possibly
 manipulate the screen.

Update instructions:

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

Ubuntu 14.04 ESM:
  python-software-properties      0.92.37.8ubuntu0.1~esm1
  python3-software-properties     0.92.37.8ubuntu0.1~esm1
  software-properties-common      0.92.37.8ubuntu0.1~esm1

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

References:
  https://usn.ubuntu.com/4457-2
  https://usn.ubuntu.com/4457-1
  CVE-2020-15709
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