Hash: SHA256
====================================================================
Red Hat Security Advisory
Synopsis: Low: cloud-init security, bug fix, and enhancement
update
Advisory ID: RHSA-2020:3050-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3050
Issue date: 2020-07-21
CVE Names: CVE-2018-10896
====================================================================
1. Summary:
An update for cloud-init is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a
security impact
of Low. 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. 8) - noarch
3. Description:
The cloud-init packages provide a set of init scripts for cloud
instances.
Cloud instances need special scripts to run during initialization
to
retrieve and install SSH keys, and to let the user run various
scripts.
The following packages have been upgraded to a later upstream
version:
cloud-init (19.4). (BZ#1811912)
Security Fix(es):
* cloud-init: default configuration disabled deletion of SSH
host keys
(CVE-2018-10896)
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 8.2 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/):
1598831 - CVE-2018-10896 cloud-init: default configuration
disabled deletion of SSH host keys
1811912 - [RHEL-8.2.1] cloud-init rebase to 19.4
1831646 - [RHEL8.2.1] Race condition of starting cloud-init and
NetworkManager
1844366 - [rhel-8.2.1]Incorrect ds-identify check in
cloud-init-generator
1850456 - [RHEL8.2.1] Do not log IMDSv2 token values into
cloud-init.log
6. Package List:
Red Hat Enterprise Linux AppStream (v. 8):
Source:
cloud-init-19.4-1.el8.7.src.rpm
noarch:
cloud-init-19.4-1.el8.7.noarch.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-2018-10896
https://access.redhat.com/security/updates/classification/#low
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.2_release_notes/index
8. Contact:
The Red Hat security contact is <
details at https://access.redhat.com/security/team/contact/
Copyright 2020 Red Hat, Inc.
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