[USN-4618-1] tmux vulnerability

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[USN-4618-1] tmux vulnerability

Leonidas S. Barbosa
Ubuntu Security Notice USN-4618-1
November 05, 2020

tmux vulnerability

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

- Ubuntu 20.10
- Ubuntu 20.04 LTS


tmux could be made to crash or execute arbitrary code if it received
a specially crafted input.

Software Description:
- tmux: terminal multiplexer


Sergey Nizovtsev discovered that tmux incorrectly handled some inputs.
An attacker could possibly use this issue to cause a crash or execute arbitrary code.

Update instructions:

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

Ubuntu 20.10:
  tmux                            3.1b-1ubuntu0.1

Ubuntu 20.04 LTS:
  tmux                            3.0a-2ubuntu0.2

After a standard system update you need to restart tmux session to make
all the necessary changes.


Package Information:

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