RedHat: RHSA-2020-2116:01 Important: 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):
* buildah: Crafted input tar file may lead to local file overwrite during
image build process (CVE-2020-10696)
* containers/image: Container images read entire image manifest into memory
(CVE-2020-1702)
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):
* buildah is not expanding env vars in file paths (BZ#1822031)
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-2020-1702 https://access.redhat.com/security/cve/CVE-2020-10696 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux 7 Extras:
Source:
buildah-1.11.6-11.el7_8.src.rpm
ppc64le:
buildah-1.11.6-11.el7_8.ppc64le.rpm
buildah-debuginfo-1.11.6-11.el7_8.ppc64le.rpm
s390x:
buildah-1.11.6-11.el7_8.s390x.rpm
buildah-debuginfo-1.11.6-11.el7_8.s390x.rpm
x86_64:
buildah-1.11.6-11.el7_8.x86_64.rpm
buildah-debuginfo-1.11.6-11.el7_8.x86_64.rpm
Red Hat Enterprise Linux 7 Extras:
Source:
buildah-1.11.6-11.el7_8.src.rpm
x86_64:
buildah-1.11.6-11.el7_8.x86_64.rpm
buildah-debuginfo-1.11.6-11.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 Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux 7 Extras - ppc64le, s390x, x86_64
Bugs Fixed
1792796 - CVE-2020-1702 containers/image: Container images read entire image manifest into memory
1817651 - CVE-2020-10696 buildah: Crafted input tar file may lead to local file overwrite during image build process
1822031 - buildah is not expanding env vars in file paths [extras-rhel-7.8/buildah]
