GHSA-gfgr-6hrj-85ww Juju affected by timing ownership claim attack on new external back-end secrets

• Go github.com/juju/juju: >= 3.0.0, < 3.6.19 → fixed in 3.6.19

A race condition in the secrets management subsystem of Juju versions 3.0.0 through 3.6.18 allows an authenticated unit agent to claim ownership of a newly initialized secret. Between generating a Juju Secret ID and creating the secret's first revision, an attacker authenticated as another unit agent can claim ownership of a known secret. This leads to the attacking unit being able to read the content of the initial secret revision. Impact Between generating a Secret ID and creating the secret's first revision, an attacker authenticated as another unit agent can claim ownership of a known secret. This leads to the attacking unit being able to read the content of the initial secret revision. Patches 3.6.19