Audit Linux privileges now to limit compromise, escalation, and system-wide damage. Review Linux Privileges×

Alerts This Week
Warning Icon 1 498
Alerts This Week
Warning Icon 1 498

Red Hat: RHSA-2020-2684-01 Moderate: MitM Vulnerability in Network Plugins

red hat
Calendar Grey June 23, 2020
Scroller Redhat
A new release has been issued for containernetworking-tools that resolves a significant security vulnerability affecting Red Hat Enterprise Linux.
An update for containernetworking-plugins is now available for Red Hat Enterprise Linux 7 Extras

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

Summary

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 allow 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.

Topics%20covered

Topics Covered

security advisory security update Red Hat Moderate network interface MitM attack containernetworking-plugins

References

https://access.redhat.com/security/cve/CVE-2020-10749 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux 7 Extras:
Source: containernetworking-plugins-0.8.3-3.el7_8.src.rpm
ppc64le: containernetworking-plugins-0.8.3-3.el7_8.ppc64le.rpm containernetworking-plugins-debuginfo-0.8.3-3.el7_8.ppc64le.rpm
s390x: containernetworking-plugins-0.8.3-3.el7_8.s390x.rpm containernetworking-plugins-debuginfo-0.8.3-3.el7_8.s390x.rpm
x86_64: containernetworking-plugins-0.8.3-3.el7_8.x86_64.rpm containernetworking-plugins-debuginfo-0.8.3-3.el7_8.x86_64.rpm
Red Hat Enterprise Linux 7 Extras:
Source: containernetworking-plugins-0.8.3-3.el7_8.src.rpm
x86_64: containernetworking-plugins-0.8.3-3.el7_8.x86_64.rpm containernetworking-plugins-debuginfo-0.8.3-3.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/


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:2684-01
Product: Red Hat Enterprise Linux Extras
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2684
Issue date: 2020-06-23

Topic

An update for containernetworking-plugins is now available for Red HatEnterprise Linux 7 Extras.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security update Red Hat Moderate network interface MitM attack containernetworking-plugins

Relevant Releases Architectures

Red Hat Enterprise Linux 7 Extras - ppc64le, s390x, x86_64

Bugs Fixed

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

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.