buildah-1.11.6-8.el7

The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to:

* Create a working container, either from scratch or using an image as a starting point.

* Create an image, either from a working container or using the instructions in a Dockerfile.

* Build both Docker and OCI images.

Security Fix(es):

* proglottis/gpgme: Use-after-free in GPGME bindings during container image pull (CVE-2020-8945)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

* rootless buildah does not work with UID in /etc/subuid (BZ#1765469)

* Extras RHEL-7.8 update - buildah (BZ#1791286)

* buildah should be linked against gpgme-pthread (BZ#1793074)

CVE-2020-8945
The proglottis Go wrapper before 0.1.1 for the GPGME library has a use-after-free, as demonstrated by use for container image pulls by Docker or CRI-O. This leads to a crash or potential code execution during GPG signature verification.