RHBA-2018:0407 - Bug Fix Advisory

Topic

Updated cloud-init packages that fix several bugs are now available for Red Hat Enterprise Linux 7.

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.

This update fixes the following bugs:

• Prior to this update, the cloud-init service in some cases did not provide newly created virtual machines with appropriate DNS configuration. The underlying code has been fixed, which prevents this problem from occurring. (BZ#1537439)
• Under certain circumstances, the cloud-init service incorrectly provided IPv4 configuration to the IPv6 boot protocol of a newly created virtual machine. As a consequence, the guest experienced a variety of network problems. With this update, cloud-init provides the appropriate IPv6 configuration. (BZ#1540093)
• Previously, the cloud-init service did not apply the default gateway parameters for Red Hat Enterprise Linux 7 guest virtual machines, which caused the guests to be impossible to log in to using the Red Hat Virtualization and Red Hat OpenStack Platform clients. The gateway parameters are now applied correctly, and the affected login processes now work as expected. (BZ#1540094)
• Previously, the cloud-init service did not apply the DNS nameserver and DNS domain parameters if they were included in the network configuration for Red Hat Enterprise Linux 7 guest virtual machines. As a consequence, the guests were improperly configured. The nameserver and domain parameters are now applied correctly, and the applied network configuration works as expected. (BZ#1545525)

Users of cloud-init are advised to upgrade to these updated packages, which fix these bugs.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.5 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.4 x86_64
• Red Hat Enterprise Linux Server - AUS 7.7 x86_64
• Red Hat Enterprise Linux Server - AUS 7.6 x86_64
• Red Hat Enterprise Linux Server - AUS 7.4 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.7 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.5 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.4 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.7 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.5 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.4 ppc64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.7 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.6 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.5 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.4 ppc64le
• Red Hat Enterprise Linux Server - TUS 7.7 x86_64
• Red Hat Enterprise Linux Server - TUS 7.6 x86_64
• Red Hat Enterprise Linux Server - TUS 7.4 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x
• Red Hat Enterprise Linux for ARM 64 7 aarch64
• Red Hat Enterprise Linux for Power 9 7 ppc64le
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.7 ppc64le
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.6 ppc64le
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.4 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.7 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.4 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le

Fixes

• BZ - 1537439 - cloud-init with config drive does not populate dns information correctly [rhel-7.4.z]
• BZ - 1540093 - Write correct BOOTPROTO in sysconfig files with ipv4+ipv6 on same interface [rhel-7.4.z]
• BZ - 1540094 - Cloud-init fails to set the default gateway on RHEL 7.4 VM [rhel-7.4.z]
• BZ - 1545525 - Cloud-init fails to set dns_servers and dns_search on RHEL 7.4 VM [rhel-7.4.z]

CVEs

(none)

References

(none)