Affected versions contained a pair of use-after-free issues with the objects returned by the getformatinfo and get_context methods of Stream objects. These objects were mistakenly being constructed without setting an important flag to prevent destruction of the underlying C objects they reference upon their own destruction.
{
"severity": "HIGH",
"github_reviewed": true,
"cwe_ids": [
"CWE-416"
],
"nvd_published_at": "2021-12-27T00:15:00Z",
"github_reviewed_at": "2022-01-06T18:29:31Z"
}