RHSA-2023:1765 - Security Advisory

Topic

An update for openvswitch2.17 is now available in Fast Datapath for Red Hat Enterprise Linux 8.

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

Open vSwitch provides standard network bridging functions and support for the OpenFlow protocol for remote per-flow control of traffic.

Security Fix(es):

• openvswitch: ip proto 0 triggers incorrect handling (CVE-2023-1668)

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.

Bug Fix(es):

• [23.C RHEL-8] Fast Datapath Release (BZ#2177685)
• [CT] Inner header of ICMP related traffic does not get DNATed (BZ#2178200)

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

Affected Products

• Red Hat Enterprise Linux Fast Datapath 8 x86_64
• Red Hat Enterprise Linux Fast Datapath (for RHEL Server for IBM Power LE) 8 ppc64le
• Red Hat Enterprise Linux Fast Datapath (for IBM z Systems) 8 s390x
• Red Hat Enterprise Linux Fast Datapath (for RHEL for ARM 64) 8 aarch64

Fixes

• BZ - 2137666 - CVE-2023-1668 openvswitch: ip proto 0 triggers incorrect handling
• BZ - 2177685 - [23.C RHEL-8] Fast Datapath Release
• BZ - 2178200 - [CT] Inner header of ICMP related traffic does not get DNATed

CVEs

• CVE-2023-1668

References

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