Synopsis

Moderate: OpenShift Container Platform 4.2.36 containernetworking-plugins security update

Type/Severity

Security Advisory: Moderate

Topic

An update for containernetworking-plugins is now available for Red Hat OpenShift Container Platform 4.2.

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.

Description

The Container Network Interface (CNI) project consists of a specification and libraries for writing plug-ins for configuring network interfaces in Linux containers, along with a number of supported plug-ins. CNI concerns itself only with network connectivity of containers and removing allocated resources when the container is deleted.

Security Fix(es):

• containernetworking/plugins: IPv6 router advertisements allowed for MitM attacks on IPv4 clusters (CVE-2020-10749)
  

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.

Solution

For OpenShift Container Platform 4.2 see the following documentation, which
will be updated shortly for release 4.2.36, for important instructions on
how to upgrade your cluster and fully apply this asynchronous errata
update:

https://docs.openshift.com/container-platform/4.2/release_notes/ocp-4-2-release-notes.html

Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.2/updating/updating-cluster-cli.html.

Affected Products

• Red Hat OpenShift Container Platform 4.2 for RHEL 8 x86_64
• Red Hat OpenShift Container Platform 4.2 for RHEL 7 x86_64
• Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.2 for RHEL 8 s390x

Fixes

• BZ - 1833220 - CVE-2020-10749 containernetworking/plugins: IPv6 router advertisements allow for MitM attacks on IPv4 clusters

CVEs

• CVE-2020-10749

References

• https://access.redhat.com/security/updates/classification/#moderate

Red Hat OpenShift Container Platform 4.2 for RHEL 8

SRPM
containernetworking-plugins-0.8.6-1.rhaos4.2.el8.src.rpm	SHA-256: ae31c94457eeeaf38f0b6a6acbdbf83cea29b1495bdb0b82f77ed1036459e9c3
x86_64
containernetworking-plugins-0.8.6-1.rhaos4.2.el8.x86_64.rpm	SHA-256: 035006ed86b1988133b8c0cc38204e526952ce2bf5aabd42813151e24c7ffb32
containernetworking-plugins-debuginfo-0.8.6-1.rhaos4.2.el8.x86_64.rpm	SHA-256: 22ba745a551ddc90b1a3b746b2f4eaa3000d9411a60d8fdb3312b8fd94139b3d
containernetworking-plugins-debugsource-0.8.6-1.rhaos4.2.el8.x86_64.rpm	SHA-256: fdd8130c9543cb5c0b7389917fc921f15bb883572f64b15267880bae813112e8

Red Hat OpenShift Container Platform 4.2 for RHEL 7

SRPM
containernetworking-plugins-0.8.6-1.rhaos4.2.el7.src.rpm	SHA-256: 953d70d3599ad2ba89e929c3465469f0d3da01d0d5357eab03082ebb6fd7cd80
x86_64
containernetworking-plugins-0.8.6-1.rhaos4.2.el7.x86_64.rpm	SHA-256: 9875797e87f8396ab60fa35f43ae8a0053eee44138d32451a2406ab5217d00cb
containernetworking-plugins-debuginfo-0.8.6-1.rhaos4.2.el7.x86_64.rpm	SHA-256: 0629d92f018a29b365f9b84949f883c5381ed5afa313d5c1e3456f19bb836a98

Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.2 for RHEL 8

SRPM
containernetworking-plugins-0.8.6-1.rhaos4.2.el8.src.rpm	SHA-256: ae31c94457eeeaf38f0b6a6acbdbf83cea29b1495bdb0b82f77ed1036459e9c3
s390x
containernetworking-plugins-0.8.6-1.rhaos4.2.el8.s390x.rpm	SHA-256: c52251c080ba3036ab55bcd6307bf210968980f161488d18166aa7e74c4fb530
containernetworking-plugins-debuginfo-0.8.6-1.rhaos4.2.el8.s390x.rpm	SHA-256: 3a7dd1c00cd70efc339bc2d5f3691cfdef2976d4c805e36d572b2dacb9ca87be
containernetworking-plugins-debugsource-0.8.6-1.rhaos4.2.el8.s390x.rpm	SHA-256: 2b40ccd3ed19546b83ca122dd233ab5323cff9952304cf7e1ecdfc811e430879