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USN-4762-1: OpenSSH vulnerability

10 March 2021

OpenSSH could be made to crash or run programs if it received specially crafted network traffic.

Releases

Packages

  • openssh - secure shell (SSH) for secure access to remote machines

Details

It was discovered that the OpenSSH ssh-agent incorrectly handled memory. A
remote attacker able to connect to the agent could use this issue to cause
it to crash, resulting in a denial of service, or possibly execute
arbitrary code.

Update instructions

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

Ubuntu 20.10
Ubuntu 20.04

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

References