This update for umoci fixes the following issues:
Update to umoci v0.5.0. Upstream changelog is available from
https://github.com/opencontainers/umoci/releases/tag/v0.5.0 bsc#1243388
A security flaw was found in the OCI image-spec, where it is possible to cause a blob with one media-type to be interpreted as a different media-type. As umoci is not a registry nor does it handle signatures, this vulnerability had no real impact on umoci but for safety we implemented the now-recommended media-type embedding and verification. CVE-2021-41190
Other changes in this release: