RHSA-2021:2239MediumCVSS 8.2

Red Hat Security Advisory: Red Hat Virtualization Host security update [ovirt-4.4.6]

Published
June 3, 2021
Last Modified
November 5, 2026

🔗 CVE IDs covered (3)

CVE-2020-36242 →CVE-2020-25659 →CVE-2020-28196 →

📋 Description

CVE-2020-25659 — python-cryptography: Bleichenbacher timing oracle attack against RSA decryption CVE-2020-28196 — krb5: unbounded recursion via an ASN.1-encoded Kerberos message in lib/krb5/asn.1/asn1_encode.c may lead to DoS CVE-2020-36242 — python-cryptography: Large inputs for symmetric encryption can trigger integer overflow leading to buffer overflow

🎯 Affected products24

  • RHEL 8-based RHEV-H for RHEV 4 (build requirements)
  • Red Hat Virtualization 4 Hypervisor for RHEL 8
  • Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts
  • cockpit-ovirt-0:0.15.0-2.el8ev.src as a component of Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts
  • cockpit-ovirt-dashboard-0:0.15.0-2.el8ev.noarch as a component of Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts
  • elfutils-debuginfo-0:0.182-3.el8.x86_64 as a component of Red Hat Virtualization 4 Hypervisor for RHEL 8
  • elfutils-debuginfod-client-0:0.182-3.el8.x86_64 as a component of Red Hat Virtualization 4 Hypervisor for RHEL 8
  • elfutils-debuginfod-client-debuginfo-0:0.182-3.el8.x86_64 as a component of Red Hat Virtualization 4 Hypervisor for RHEL 8
  • elfutils-debuginfod-debuginfo-0:0.182-3.el8.x86_64 as a component of Red Hat Virtualization 4 Hypervisor for RHEL 8
  • elfutils-debugsource-0:0.182-3.el8.x86_64 as a component of Red Hat Virtualization 4 Hypervisor for RHEL 8
  • elfutils-libelf-debuginfo-0:0.182-3.el8.x86_64 as a component of Red Hat Virtualization 4 Hypervisor for RHEL 8
  • elfutils-libs-debuginfo-0:0.182-3.el8.x86_64 as a component of Red Hat Virtualization 4 Hypervisor for RHEL 8
  • imgbased-0:1.2.19-1.el8ev.noarch as a component of RHEL 8-based RHEV-H for RHEV 4 (build requirements)
  • imgbased-0:1.2.19-1.el8ev.src as a component of RHEL 8-based RHEV-H for RHEV 4 (build requirements)
  • ovirt-hosted-engine-ha-0:2.4.7-1.el8ev.noarch as a component of Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts
  • ovirt-hosted-engine-ha-0:2.4.7-1.el8ev.src as a component of Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts
  • python3-imgbased-0:1.2.19-1.el8ev.noarch as a component of RHEL 8-based RHEV-H for RHEV 4 (build requirements)
  • redhat-release-virtualization-host-0:4.4.6-1.el8ev.src as a component of RHEL 8-based RHEV-H for RHEV 4 (build requirements)
  • redhat-release-virtualization-host-0:4.4.6-1.el8ev.x86_64 as a component of RHEL 8-based RHEV-H for RHEV 4 (build requirements)
  • redhat-virtualization-host-0:4.4.6-20210527.3.el8_4.src as a component of Red Hat Virtualization 4 Hypervisor for RHEL 8
  • redhat-virtualization-host-image-update-0:4.4.6-20210527.3.el8_4.x86_64 as a component of Red Hat Virtualization 4 Hypervisor for RHEL 8
  • redhat-virtualization-host-image-update-placeholder-0:4.4.6-1.el8ev.noarch as a component of RHEL 8-based RHEV-H for RHEV 4 (build requirements)
  • scap-security-guide-0:0.1.54-1.el8ev.src as a component of RHEL 8-based RHEV-H for RHEV 4 (build requirements)
  • scap-security-guide-rhv-0:0.1.54-1.el8ev.noarch as a component of RHEL 8-based RHEV-H for RHEV 4 (build requirements)

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891 Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

🔗 References (20)