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USN-5351-1: Paramiko vulnerability

28 March 2022

Paramiko would allow unintended access to private key files.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Releases

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.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

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.

References

Related notices

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