USN-4219-1: libssh vulnerability

10 December 2019

libssh could be made to run programs under certain conditions.

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Releases

Packages

  • libssh - A tiny C SSH library

Details

It was discovered that libssh incorrectly handled certain scp commands. If
a user or automated system were tricked into using a specially-crafted scp
command, a remote attacker could execute arbitrary commands on the server.

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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.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 19.10
Ubuntu 19.04
Ubuntu 18.04
Ubuntu 16.04

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

References

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Further reading