RHSA-2022:4787 - Security Advisory

Topic

An update for openvswitch2.15 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):

• openvswitch2.15: DPDK: Out-of-bounds read/write in vhost_user_set_inflight_fd() may lead to crash (CVE-2021-3839)
• openvswitch2.15: DPDK: Sending vhost-user-inflight type messages could lead to DoS (CVE-2022-0669)

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

Users of openvswitch2.15 are advised to upgrade to these updated packages, which fix these bugs.

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 - 2025882 - CVE-2021-3839 DPDK: out-of-bounds read/write in vhost_user_set_inflight_fd() may lead to crash
• BZ - 2055793 - CVE-2022-0669 dpdk: sending vhost-user-inflight type messages could lead to DoS
• BZ - 2070343 - Failed to read database with dns hostname address
• BZ - 2080271 - [22.D RHEL-8] Fast Datapath Release

CVEs

• CVE-2021-3839
• CVE-2022-0669

References

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