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Red Hat Enterprise Linux 7: RHSA-2022-0443 Important: RHV-H Security Update

An update for redhat-release-virtualization-host and 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. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: RHV-H security update (redhat-virtualization-host) 4.3.21 Advisory ID: RHSA-2022:0443-01 Product: Red Hat Virtualization Advisory URL: https://access.redhat.com/errata/RHSA-2022:0443 Issue date: 2022-02-07 CVE Names: CVE-2020-25717 CVE-2021-4034 ==================================================================== 1. Summary: An update for redhat-release-virtualization-host and 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 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): * polkit: Local privilege escalation in pkexec due to incorrect handling of argument vector (CVE-2021-4034) * samba: Active Directory (AD) domain user could become root on domain members (CVE-2020-25717) Formore 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. 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/): 2019672 - CVE-2020-25717 samba: Active Directory (AD) domain user could become root on domain members2025869 - CVE-2021-4034 polkit: Local privilege escalation in pkexec due to incorrect handling of argument vector 6. Package List: Red Hat Virtualization 4 Hypervisor for RHEL 7: Source: redhat-virtualization-host-4.3.21-20220126.0.el7_9.src.rpm noarch: redhat-virtualization-host-image-update-4.3.21-20220126.0.el7_9.noarch.rpm RHEL 7-based RHEV-H for RHEV 4 (build requirements): Source: redhat-release-virtualization-host-4.3.21-1.el7ev.src.rpm redhat-virtualization-host-4.3.21-20220126.0.el7_9.src.rpm noarch: redhat-virtualization-host-image-update-4.3.21-20220126.0.el7_9.noarch.rpm redhat-virtualization-host-image-update-placeholder-4.3.21-1.el7ev.noarch.rpm x86_64: redhat-release-virtualization-host-4.3.21-1.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-2020-25717 https://access.redhat.com/security/cve/CVE-2021-4034 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/RHSB-2022-001 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2022 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPGv1 iQIVAwUBYgIBz9zjgjWX9erEAQjwZQ/+KpEq9OVHo7VQTl7Lf1SzVOtZLXIn/skT uDUQgTAXlMgJzxTA+W2dhQKmw2C5H8G4DEPMX52aYuDhxmWs+ycWr4ul22yG/hsG pqO1bkcb1cahjI2In3MNastkbTNMlkfn3j2p4Hh5jkavjltAYv301Rx+82B2lyNF Tk5TDiu0Y+5pj5mDCJq3rB2cVBBni/c7/oQAA4xG6406SmAsFKA1JpqmutAihmgm DY8QntXwxJZ+Ofw6DVMf6zQWtdgpq0vvZeBQg5DwTUF2MGnsB/i5PdhPbm5iU8RH M8qf1iOk2F7pzYV8p5L6tM/9F53U0wVr3WPYXBCNyiIyV3T1xI0ifHWUJ2qdPgRl POtPNu3VfW/mdf/QfdZyjkMynMOoHOkp9Tcz9rDXqX3PVjJvWUpyYs09Jwo64cva wIcsMGw2aL/+Adhf9YPvrQaLwStFJv12sK9szU22K+SDM3FzvrP2ZSs7ClWo+E8S QHBPSXF4tJ6rRvSkPgVOviCixJooh4q4OAzBK4b6CCda7btnlkIoT53M1hMeQgu7 1x5tMF6JcQueZsftufkio3v6LLBdyv9hFUoYmlX1EnTRIejpVeJKMNLwCN+KSkUp 3+OsxWa485lTeBivOp32B0JMwBdqwUhm08is6b4Ts2hZAO30XCP2F5eXhCuOpUi7 NbJpZ0xa8wI=GPoM -----END PGP SIGNATURE----- -- RHSA-announce mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. . A significant RHV-H security patch tackles authorization elevation in Red Hat Virtualization for RHEL 8 environments.. Red Hat Virtualization, RHV-H Security, Privilege Escalation, RHEL Updates, Security Advisory. . Severity: Important. LinuxSecurity.com Team

Feb 08, 2022 •Important Red Hat