RHSA-2021:1324 - Security Advisory

Topic

An update for servicemesh-proxy is now available for OpenShift Service Mesh 2.0.

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):

• envoyproxy/envoy: integer overflow handling large grpc-timeouts (CVE-2021-28682)
• envoyproxy/envoy: NULL pointer dereference in TLS alert code handling (CVE-2021-28683)
• envoyproxy/envoy: crash with empty HTTP/2 metadata map (CVE-2021-29258)

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 OpenShift Service Mesh 2.0 for RHEL 8 x86_64
• Red Hat OpenShift Service Mesh for Power 2.0 for RHEL 8 ppc64le
• Red Hat OpenShift Service Mesh for IBM Z 2.0 for RHEL 8 s390x

Fixes

• BZ - 1942263 - CVE-2021-28683 envoyproxy/envoy: NULL pointer dereference in TLS alert code handling
• BZ - 1942272 - CVE-2021-28682 envoyproxy/envoy: integer overflow handling large grpc-timeouts
• BZ - 1942280 - CVE-2021-29258 envoyproxy/envoy: crash with empty HTTP/2 metadata map

CVEs

• CVE-2021-28682
• CVE-2021-28683
• CVE-2021-29258

References

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