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USN-5351-1: Paramiko vulnerability

28 March 2022

Paramiko would allow unintended access to private key files.




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

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

Ubuntu 21.10
Ubuntu 20.04
Ubuntu 18.04

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


Related notices

  • USN-5351-2: python3-paramiko, python-paramiko, paramiko, paramiko-doc