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Ubuntu Security Notice USN-4204-1

Ubuntu Security Notice USN-4204-1
Posted Nov 28, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4204-1 - Riccardo Schirone discovered that psutil incorrectly handled certain reference counting operations. An attacker could use this issue to cause psutil to crash, resulting in a denial of service, or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2019-18874
SHA-256 | adc7ec85d31f5349a8be376afe8cf08edc4acfe1a9f39099e09b041b7b93cb51

Ubuntu Security Notice USN-4204-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4204-1
November 28, 2019

python-psutil vulnerability
==========================================================================

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

- Ubuntu 19.10
- Ubuntu 19.04
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

psutil could be made to crash or run programs.

Software Description:
- python-psutil: module providing convenience functions for managing processes

Details:

Riccardo Schirone discovered that psutil incorrectly handled certain
reference counting operations. An attacker could use this issue to cause
psutil to crash, resulting in a denial of service, or possibly execute
arbitrary code.

Update instructions:

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

Ubuntu 19.10:
python-psutil 5.5.1-1ubuntu0.19.10.1
python3-psutil 5.5.1-1ubuntu0.19.10.1

Ubuntu 19.04:
python-psutil 5.5.1-1ubuntu0.19.04.1
python3-psutil 5.5.1-1ubuntu0.19.04.1

Ubuntu 18.04 LTS:
python-psutil 5.4.2-1ubuntu0.1
python3-psutil 5.4.2-1ubuntu0.1

Ubuntu 16.04 LTS:
python-psutil 3.4.2-1ubuntu0.1
python3-psutil 3.4.2-1ubuntu0.1

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

References:
https://usn.ubuntu.com/4204-1
CVE-2019-18874

Package Information:
https://launchpad.net/ubuntu/+source/python-psutil/5.5.1-1ubuntu0.19.10.1
https://launchpad.net/ubuntu/+source/python-psutil/5.5.1-1ubuntu0.19.04.1
https://launchpad.net/ubuntu/+source/python-psutil/5.4.2-1ubuntu0.1
https://launchpad.net/ubuntu/+source/python-psutil/3.4.2-1ubuntu0.1

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