RHSA-2023:0687 - Security Advisory

Topic

An update for openvswitch2.15 is now available for 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: Out-of-Bounds Read in Organization Specific TLV (CVE-2022-4337)
• openvswitch: Integer Underflow in Organization Specific TLV (CVE-2022-4338)

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 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 - 2060552 - Userspace datapath drops the encapsulated packet with inner vlan if sent to the access port
• BZ - 2155378 - CVE-2022-4337 openvswitch: Out-of-Bounds Read in Organization Specific TLV
• BZ - 2155381 - CVE-2022-4338 openvswitch: Integer Underflow in Organization Specific TLV
• BZ - 2162030 - [23.A RHEL-8] Fast Datapath Release

CVEs

• CVE-2022-4337
• CVE-2022-4338

References

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