View at Official ubuntu advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2017-18342 low priority: Ubuntu including 1 source packages (pyyaml), 8 status rows across 8 suites (bionic, cosmic, disco, eoan, focal, trusty, upstream, xenial): ignored 5, not-affected 2, needed 1.
In PyYAML before 5.1, the yaml.load() API could execute arbitrary code if used with untrusted data. The load() function has been deprecated in version 5.1 and the 'UnsafeLoader' has been introduced for backward compatibility with the function.