RHSA-2021:2704 - Security Advisory

Topic

Release of OpenShift Serverless Client kn 1.16.0

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

Red Hat OpenShift Serverless Client kn 1.16.0 provides a CLI to interact with Red Hat OpenShift Serverless 1.16.0. The kn CLI is delivered as an RPM package for installation on RHEL platforms, and as binaries for non-Linux platforms.

Security Fix(es):

• golang: encoding/xml: infinite loop when using xml.NewTokenDecoder with a custom TokenReader (CVE-2021-27918)
• golang: net/http: panic in ReadRequest and ReadResponse when reading a very large header (CVE-2021-31525)
• golang: archive/zip: malformed archive may cause panic or memory exhaustion (CVE-2021-33196)

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

See the Red Hat OpenShift Container Platform 4.6 documentation at: https://access.redhat.com/documentation/en-us/openshift_container_platform/4.6/html/serverless_applications/index

See the Red Hat OpenShift Container Platform 4.7 documentation at: https://access.redhat.com/documentation/en-us/openshift_container_platform/4.7/html/serverless/index

Affected Products

• Red Hat Openshift Serverless 1 x86_64
• Red Hat OpenShift Serverless for IBM Power, little endian 1 ppc64le
• Red Hat OpenShift Serverless for IBM Z and LinuxONE 1 s390x

Fixes

• BZ - 1937901 - CVE-2021-27918 golang: encoding/xml: infinite loop when using xml.NewTokenDecoder with a custom TokenReader
• BZ - 1958341 - CVE-2021-31525 golang: net/http: panic in ReadRequest and ReadResponse when reading a very large header
• BZ - 1965503 - CVE-2021-33196 golang: archive/zip: Malformed archive may cause panic or memory exhaustion
• BZ - 1971449 - Release of Openshift Serverless Client 1.16.0

CVEs

• CVE-2021-27918
• CVE-2021-31525
• CVE-2021-33196

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/documentation/en-us/openshift_container_platform/4.6/html/serverless/index
• https://access.redhat.com/documentation/en-us/openshift_container_platform/4.7/html/serverless/index