RHSA-2024:4035 - Security Advisory

Topic

An update for ovn-2021 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
Important. 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

OVN, the Open Virtual Network, is a system to support virtual network
abstraction. OVN complements the existing capabilities of OVS to add
native support for virtual network abstractions, such as virtual L2 and L3
overlays and security groups.

Security fix(es):

• ovn-2021: insufficient validation of BFD packets may lead to denial of service (CVE-2024-2182)

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

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, 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 - 2267840 - CVE-2024-2182 ovn: insufficient validation of BFD packets may lead to denial of service

CVEs

• CVE-2024-2182

References

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