USN-5351-1: Paramiko vulnerability

Publication date

28 March 2022

Overview

Paramiko would allow unintended access to private key files.


Packages

Details

Jan Schejbal discovered that Paramiko incorrectly handled permissions when
writing private key files. A local attacker could possibly use this issue
to gain access to private keys.

Jan Schejbal discovered that Paramiko incorrectly handled permissions when
writing private key files. A local attacker could possibly use this issue
to gain access to private keys.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
21.10 impish python3-paramiko –  2.7.2-1ubuntu1.1
20.04 focal python3-paramiko –  2.6.0-2ubuntu0.1
18.04 bionic python3-paramiko –  2.0.0-1ubuntu1.3
python-paramiko –  2.0.0-1ubuntu1.3

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