RHSA-2021:0145 - Security Advisory

Topic

Red Hat OpenShift Serverless Client kn 1.12.0

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. For more information, see the CVE links in the References
section.

Description

Red Hat OpenShift Serverless Client kn CLI is delivered as an RPM package for installation on RHEL platforms, and as binaries for non-Linux platforms.

Red Hat OpenShift Serverless Client kn 1.12.0 provides a CLI to interact
with Red Hat OpenShift Serverless 1.12.0, and includes security and bug fixes and enhancements. For more information, see the release notes listed in the References section.

Security Fix(es):

• golang: default Content-Type setting in net/http/cgi and net/http/fcgi could cause XSS (CVE-2020-24553)
• golang: math/big: panic during recursive division of very large numbers (CVE-2020-28362)
• golang: malicious symbol names can lead to code execution at build time (CVE-2020-28366)
• golang: improper validation of cgo flags can lead to code execution at build time (CVE-2020-28367)

For more details about the security issues and their impact, the CVSS
score, acknowledgements, and other related information, see the CVE pages
listed in the References section.

Solution

See the documentation at:
https://access.redhat.com/documentation/en-us/openshift_container_platform/4.6/html/serverless_applications/index

Affected Products

• Red Hat Openshift Serverless 1 for RHEL 8 x86_64

Fixes

• BZ - 1874857 - CVE-2020-24553 golang: default Content-Type setting in net/http/cgi and net/http/fcgi could cause XSS
• BZ - 1897635 - CVE-2020-28362 golang: math/big: panic during recursive division of very large numbers
• BZ - 1897643 - CVE-2020-28366 golang: malicious symbol names can lead to code execution at build time
• BZ - 1897646 - CVE-2020-28367 golang: improper validation of cgo flags can lead to code execution at build time
• BZ - 1906386 - Release of OpenShift Serverless Client 1.12.0

CVEs

• CVE-2020-24553
• CVE-2020-28362
• CVE-2020-28366
• CVE-2020-28367

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/documentation/en-us/openshift_container_platform/4.6/html/serverless_applications/installing-openshift-serverless-1#installing-kn