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Red Hat Virtualization 4 Update: RHSA-2021:0395-01 Critical Bug Fixes

An update for redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score,. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: RHV-H security, bug fix, enhancement update (redhat-virtualization-host) 4.3.13 Advisory ID: RHSA-2021:0395-01 Product: Red Hat Virtualization Advisory URL: https://access.redhat.com/errata/RHSA-2021:0395 Issue date: 2021-02-03 CVE Names: CVE-2020-25684 CVE-2020-25685 CVE-2020-25686 CVE-2021-3156 ==================================================================== 1. Summary: An update for redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 7. 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. 2. Relevant releases/architectures: RHEL 7-based RHEV-H for RHEV 4 (build requirements) - noarch, x86_64 Red Hat Virtualization 4 Hypervisor for RHEL 7 - noarch Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts - noarch, ppc64le, x86_64 3. Description: The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. Security Fix(es): * sudo: Heap buffer overflow in argument parsing(CVE-2021-3156) * dnsmasq: loose address/port check in reply_query() makes forging replies easier for an off-path attacker (CVE-2020-25684) * dnsmasq: loose query name check in reply_query() makes forging replies easier for an off-path attacker (CVE-2020-25685) * dnsmasq: multiple queries forwarded for the same name makes forging replies easier for an off-path attacker (CVE-2020-25686) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * When performing an upgrade of the Red Hat Virtualization Host using the command `yum update`, the yum repository for RHV 4.3 EUS is unreachable As a workaround, run the following command: `# yum update --releasever=7Server` (BZ#1899378) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891 5. Bugs fixed (https://bugzilla.redhat.com/): 1889686 - CVE-2020-25684 dnsmasq: loose address/port check in reply_query() makes forging replies easier for an off-path attacker 1889688 - CVE-2020-25685 dnsmasq: loose query name check in reply_query() makes forging replies easier for an off-path attacker 1890125 - CVE-2020-25686 dnsmasq: multiple queries forwarded for the same name makes forging replies easier for an off-path attacker 1899378 - rhel-7-server-rhvh-4.3-eus-rpms repo is unavailable 1916111 - Rebase RHV-H 4.3 EUS on RHEL 7.9.z #3 1917684 - CVE-2021-3156 sudo: Heap buffer overflow in argument parsing 6. Package List: Red Hat Virtualization 4 Management Agent for RHEL 7Hosts: Source: vdsm-4.30.51-1.el7ev.src.rpm noarch: vdsm-api-4.30.51-1.el7ev.noarch.rpm vdsm-client-4.30.51-1.el7ev.noarch.rpm vdsm-common-4.30.51-1.el7ev.noarch.rpm vdsm-hook-cpuflags-4.30.51-1.el7ev.noarch.rpm vdsm-hook-ethtool-options-4.30.51-1.el7ev.noarch.rpm vdsm-hook-fcoe-4.30.51-1.el7ev.noarch.rpm vdsm-hook-localdisk-4.30.51-1.el7ev.noarch.rpm vdsm-hook-macspoof-4.30.51-1.el7ev.noarch.rpm vdsm-hook-nestedvt-4.30.51-1.el7ev.noarch.rpm vdsm-hook-openstacknet-4.30.51-1.el7ev.noarch.rpm vdsm-hook-vhostmd-4.30.51-1.el7ev.noarch.rpm vdsm-hook-vmfex-dev-4.30.51-1.el7ev.noarch.rpm vdsm-http-4.30.51-1.el7ev.noarch.rpm vdsm-jsonrpc-4.30.51-1.el7ev.noarch.rpm vdsm-python-4.30.51-1.el7ev.noarch.rpm vdsm-yajsonrpc-4.30.51-1.el7ev.noarch.rpm ppc64le: vdsm-4.30.51-1.el7ev.ppc64le.rpm vdsm-gluster-4.30.51-1.el7ev.ppc64le.rpm vdsm-hook-checkips-4.30.51-1.el7ev.ppc64le.rpm vdsm-hook-extra-ipv4-addrs-4.30.51-1.el7ev.ppc64le.rpm vdsm-network-4.30.51-1.el7ev.ppc64le.rpm x86_64: vdsm-4.30.51-1.el7ev.x86_64.rpm vdsm-gluster-4.30.51-1.el7ev.x86_64.rpm vdsm-hook-checkips-4.30.51-1.el7ev.x86_64.rpm vdsm-hook-extra-ipv4-addrs-4.30.51-1.el7ev.x86_64.rpm vdsm-network-4.30.51-1.el7ev.x86_64.rpm Red Hat Virtualization 4 Hypervisor for RHEL 7: Source: redhat-virtualization-host-4.3.13-20210127.0.el7_9.src.rpm noarch: redhat-virtualization-host-image-update-4.3.13-20210127.0.el7_9.noarch.rpm RHEL 7-based RHEV-H for RHEV 4 (build requirements): Source: redhat-release-virtualization-host-4.3.13-2.el7ev.src.rpm redhat-virtualization-host-4.3.13-20210127.0.el7_9.src.rpm noarch: redhat-virtualization-host-image-update-4.3.13-20210127.0.el7_9.noarch.rpm redhat-virtualization-host-image-update-placeholder-4.3.13-2.el7ev.noarch.rpm x86_64: redhat-release-virtualization-host-4.3.13-2.el7ev.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7.References: https://access.redhat.com/security/cve/CVE-2020-25684 https://access.redhat.com/security/cve/CVE-2020-25685 https://access.redhat.com/security/cve/CVE-2020-25686 https://access.redhat.com/security/cve/CVE-2021-3156 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/RHSB-2021-001 https://access.redhat.com/security/vulnerabilities/RHSB-2021-002 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYBp9VtzjgjWX9erEAQhMgQ//YPr8PxceadOzaQlV8+U/ZrWBQkmGVhqb pqOvhvw3Z5MzaVE+ZlSAQvZTUDq51Zf6EinUB+DWkUEGwQ6GeyUjaeuPU+KzP9Uk V6iu3Y5NOwaxQxQbkLWDuCgCpoPQaNqDWtICQoYkGom/YsnsZDWbQbATa6NFGPMS eeOeIV+5DK5jt7BGMHSnDHhJMmKTCPJtrwOnGVd9yeY/02qNWiCa8FzP2obhKzu0 IRO4tia9UUoLLAUwSpz7OxZQ9+6i99olj80CuLIyUFawBKjzhBF5+WtWQ556cdKY 3Ar9dAUmcmqI1wSeJhstR278bADoOkSmJzIaT1H0O2fORuWlfwF9iWtFAqCgLiNC YuiIFA0Cq3JwuPoA3f+VT4njd+x1ZA15+BuhJuYORqiiU8t9QqwGfabzzMWtkI4P sCdrZIQ2nYy2dVPoZhSOwkJmvVnl8tUSUrduC9LOor5UmN9aImVzjLwhAgBglYY7 8Lepql0tD2Bw4stbg/H96avG2/IntoECQJRByrX44L7TYcgAe/EPNb+fMDD/cm/D SWBYEK4Od85RcsN+ji4kqiI7JrqM+CS6XAcUVuOzs0TyFItx7ifqML/6AEPXKiRK oqarbqzGrXm9rBvt4apdew2YAHKgrhPk6bvYaJe4tyJ8ewarZ+wovUX8CZMNMOhF 9Tuylc+nj2c=kH7O -----END PGP SIGNATURE----- -- RHSA-announce mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. . The latest update for Red Hat OpenShift brings vital improvements and bolsters security for RHEL 8, incorporating significant patches to resolve previously identified issues.. Red Hat Virtualization,RHV-H Security,Bug Fixes,Heap Overflow,Dnsmasq Attack. . Severity: Important. LinuxSecurity.com Team

Feb 03, 2021 •Important Red Hat