RHSA-2020:2864 - Security Advisory

Topic

An update for servicemesh-proxy is now available for OpenShift Service Mesh 1.0.

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

Red Hat OpenShift Service Mesh is Red Hat's distribution of the Istio service mesh project, tailored for installation into an on-premise OpenShift Container Platform installation.

Security Fix(es):

• envoy: Resource exhaustion when accepting too many connections (CVE-2020-8663)
• envoy: Resource exhaustion when proxying HTTP/2 requests or responses with small data frames (CVE-2020-12603)
• envoy: Resource exhaustion when processing HTTP/1.1 headers with long field names (CVE-2020-12605)
• envoy: Resource exhaustion via HTTP/2 client requests with large payloads and improper stream windows (CVE-2020-12604)

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

The OpenShift Service Mesh release notes provide information on the features and known issues:

https://docs.openshift.com/container-platform/latest/service_mesh/servicemesh-release-notes.html

Affected Products

• Red Hat OpenShift Service Mesh 1.0 for RHEL 8 x86_64

Fixes

• BZ - 1844251 - CVE-2020-12603 envoy: Resource exhaustion when proxying HTTP/2 requests or responses with small data frames
• BZ - 1844252 - CVE-2020-12605 envoy: Resource exhaustion when processing HTTP/1.1 headers with long field names
• BZ - 1844254 - CVE-2020-8663 envoy: Resource exhaustion when accepting too many connections
• BZ - 1844255 - CVE-2020-12604 envoy: Resource exhaustion via HTTP/2 client requests with large payloads and improper stream windows

CVEs

• CVE-2020-8663
• CVE-2020-12603
• CVE-2020-12604
• CVE-2020-12605

References

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