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Ubuntu Security Notice USN-4668-2

Ubuntu Security Notice USN-4668-2
Posted Dec 10, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4668-2 - USN-4668-1 fixed vulnerabilities in python-apt. That update caused a regression by removing information describing the Ubuntu 20.10 release from the Ubuntu templates. This update fixes the problem by restoring this information. Various other issues were also addressed.

tags | advisory, vulnerability, python
systems | linux, ubuntu
MD5 | c139cb84adaae88c523ef36f4c1810e0

Ubuntu Security Notice USN-4668-2

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4668-2
December 10, 2020

python-apt regression
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.10

Summary:

USN-4668-1 introduced a regression in python-apt.

Software Description:
- python-apt: Python interface to libapt-pkg

Details:

USN-4668-1 fixed vulnerabilities in python-apt. That update caused a
regression by removing information describing the Ubuntu 20.10 release from
the Ubuntu templates. This update fixes the problem by restoring this
information.

We apologize for the inconvenience.

Original advisory details:

Kevin Backhouse discovered that python-apt incorrectly handled
resources. A
local attacker could possibly use this issue to cause python-apt to
consume
resources, leading to a denial of service.

Update instructions:

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

Ubuntu 20.10:
python3-apt 2.1.3ubuntu1.2

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

References:
https://usn.ubuntu.com/4668-2
https://usn.ubuntu.com/4668-1
https://launchpad.net/bugs/1907496

Package Information:
https://launchpad.net/ubuntu/+source/python-apt/2.1.3ubuntu1.2
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