Red Hat Security Advisory: OpenShift Container Platform 3.11 atomic-openshift security update

Fixed packages 13

Vulnerabilities 2

• High 7.5
  CVE-2019-11253 Scanner template EPSS 26%

  Kubernetes API Server JSON/YAML parsing vulnerable to resource exhaustion attack

  Improper input validation in the Kubernetes API server in versions v1.0-1.12 and versions prior to v1.13.12, v1.14.8, v1.15.5, and v1.16.2 allows authorized users to send malicious YAML or JSON payloads, causing the API server to consume excessive CPU or memo…

  Kubernetes Kubernetes k8s.io/kubernetes kubernetes Debian Alpine Go
  Oct 17, 2019
• Medium 4.8
  CVE-2019-11251

  kubectl cp allows symlink directory traversal

  The Kubernetes kubectl cp command in versions 1.1-1.12, and versions prior to 1.13.11, 1.14.7, and 1.15.4 allows a combination of two symlinks provided by tar output of a malicious container to place a file outside of the destination directory specified in th…

  Kubernetes Kubernetes k8s.io/kubernetes Go
  Feb 3, 2020

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1753495
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1757701
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2019/rhsa-2019_3905.json
• report
  https://access.redhat.com/security/cve/CVE-2019-11251
• advisory
  https://www.cve.org/CVERecord?id=CVE-2019-11251
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2019-11251
• article
  https://groups.google.com/forum/#!msg/kubernetes-announce/YYtEFdFimZ4/nZnOezZuBgAJ
• report
  https://access.redhat.com/security/cve/CVE-2019-11253
• advisory
  https://www.cve.org/CVERecord?id=CVE-2019-11253
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2019-11253
• article
  https://www.stackrox.com/post/2019/09/protecting-kubernetes-api-against-cve-2019-11253-billion-laughs-attack/