Home / mailings [RHSA-2022:7955-01] Moderate: skopeo security and bug fix update
Posted on 15 November 2022
RedHat===================================================================== Red Hat Security Advisory
Synopsis: Moderate: skopeo security and bug fix update
Advisory ID: RHSA-2022:7955-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:7955
Issue date: 2022-11-15
CVE Names: CVE-2021-20291 CVE-2021-33198
=====================================================================
1. Summary:
An update for skopeo is now available for Red Hat Enterprise Linux 9.
Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AppStream (v. 9) - aarch64, ppc64le, s390x, x86_64
3. Description:
The skopeo command lets you inspect images from container image registries,
get images and image layers, and use signatures to create and verify files.
Security Fix(es):
* containers/storage: DoS via malicious image (CVE-2021-20291)
* golang: math/big.Rat: may cause a panic or an unrecoverable fatal error
if passed inputs with very large exponents (CVE-2021-33198)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 9.1 Release Notes linked from the References section.
4. 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
5. Bugs fixed (https://bugzilla.redhat.com/):
1939485 - CVE-2021-20291 containers/storage: DoS via malicious image
1988128 - Enable LTO build of skopeo for RHEL 9
1989575 - CVE-2021-33198 golang: math/big.Rat: may cause a panic or an unrecoverable fatal error if passed inputs with very large exponents
6. Package List:
Red Hat Enterprise Linux AppStream (v. 9):
Source:
skopeo-1.9.2-1.el9.src.rpm
aarch64:
skopeo-1.9.2-1.el9.aarch64.rpm
skopeo-debuginfo-1.9.2-1.el9.aarch64.rpm
skopeo-debugsource-1.9.2-1.el9.aarch64.rpm
skopeo-tests-1.9.2-1.el9.aarch64.rpm
ppc64le:
skopeo-1.9.2-1.el9.ppc64le.rpm
skopeo-debuginfo-1.9.2-1.el9.ppc64le.rpm
skopeo-debugsource-1.9.2-1.el9.ppc64le.rpm
skopeo-tests-1.9.2-1.el9.ppc64le.rpm
s390x:
skopeo-1.9.2-1.el9.s390x.rpm
skopeo-debuginfo-1.9.2-1.el9.s390x.rpm
skopeo-debugsource-1.9.2-1.el9.s390x.rpm
skopeo-tests-1.9.2-1.el9.s390x.rpm
x86_64:
skopeo-1.9.2-1.el9.x86_64.rpm
skopeo-debuginfo-1.9.2-1.el9.x86_64.rpm
skopeo-debugsource-1.9.2-1.el9.x86_64.rpm
skopeo-tests-1.9.2-1.el9.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/
7. References:
https://access.redhat.com/security/cve/CVE-2021-20291
https://access.redhat.com/security/cve/CVE-2021-33198
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.1_release_notes/index
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2022 Red Hat, Inc.
