RedHat: RHSA-2020-1231:01 Moderate: buildah security and bug fix update
Summary
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)
Summary
Solution
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
References
https://access.redhat.com/security/cve/CVE-2020-8945 https://access.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux 7 Extras:
Source:
buildah-1.11.6-8.el7_8.src.rpm
ppc64le:
buildah-1.11.6-8.el7_8.ppc64le.rpm
buildah-debuginfo-1.11.6-8.el7_8.ppc64le.rpm
s390x:
buildah-1.11.6-8.el7_8.s390x.rpm
buildah-debuginfo-1.11.6-8.el7_8.s390x.rpm
x86_64:
buildah-1.11.6-8.el7_8.x86_64.rpm
buildah-debuginfo-1.11.6-8.el7_8.x86_64.rpm
Red Hat Enterprise Linux 7 Extras:
Source:
buildah-1.11.6-8.el7_8.src.rpm
x86_64:
buildah-1.11.6-8.el7_8.x86_64.rpm
buildah-debuginfo-1.11.6-8.el7_8.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for buildah is now available for Red Hat Enterprise Linux 7Extras.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux 7 Extras - ppc64le, s390x, x86_64
Bugs Fixed
1765469 - rootless buildah does not work with UID in /etc/subuid
1791286 - Extras RHEL-7.8 update - buildah
1795838 - CVE-2020-8945 proglottis/gpgme: Use-after-free in GPGME bindings during container image pull
