-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: RHV-H security update (redhat-virtualization-host) 4.3.16 Advisory ID: RHSA-2021:2519-01 Product: Red Hat Virtualization Advisory URL: https://access.redhat.com/errata/RHSA-2021:2519 Issue date: 2021-06-22 CVE Names: CVE-2020-24489 CVE-2021-25217 CVE-2021-27219 ===================================================================== 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 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): * glib: integer overflow in g_bytes_new function on 64-bit platforms due to an implicit cast from 64 bits to 32 bits (CVE-2021-27219) * hw: vt-d related privilege escalation (CVE-2020-24489) * dhcp: stack-based buffer overflow when parsing statements with colon-separated hex digits in config or lease files in dhcpd and dhclient (CVE-2021-25217) 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. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/2974891 5. Bugs fixed (https://bugzilla.redhat.com/): 1929858 - CVE-2021-27219 glib: integer overflow in g_bytes_new function on 64-bit platforms due to an implicit cast from 64 bits to 32 bits 1948377 - Rebase RHV-H 4.3 EUS on RHGS 3.5.z on RHEL 7 - Batch Update 4 1957238 - Rebase RHV-H 4.3 EUS on RHEL 7.9.z #6 1962650 - CVE-2020-24489 hw: vt-d related privilege escalation 1963258 - CVE-2021-25217 dhcp: stack-based buffer overflow when parsing statements with colon-separated hex digits in config or lease files in dhcpd and dhclient 6. Package List: Red Hat Virtualization 4 Hypervisor for RHEL 7: Source: redhat-virtualization-host-4.3.16-20210615.0.el7_9.src.rpm noarch: redhat-virtualization-host-image-update-4.3.16-20210615.0.el7_9.noarch.rpm RHEL 7-based RHEV-H for RHEV 4 (build requirements): Source: redhat-release-virtualization-host-4.3.16-1.el7ev.src.rpm redhat-virtualization-host-4.3.16-20210615.0.el7_9.src.rpm noarch: redhat-virtualization-host-image-update-4.3.16-20210615.0.el7_9.noarch.rpm redhat-virtualization-host-image-update-placeholder-4.3.16-1.el7ev.noarch.rpm x86_64: redhat-release-virtualization-host-4.3.16-1.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-2020-24489 https://access.redhat.com/security/cve/CVE-2021-25217 https://access.redhat.com/security/cve/CVE-2021-27219 https://access.redhat.com/security/updates/classification/#important 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 iQIVAwUBYNHkC9zjgjWX9erEAQgfzA//XmZkMK8f1iQ1hsGb+AMoE4IxHIjKYXA2 B9zKwwpjMcDcTvu0jqx3xeXBc+TVlLa/OvlqOUKORh2s7fRfSL4X6ZCDQJABhggx pnPFOdpwARI8EZCup/o9msr6EHq6JVMiD7ULuy4HSsvtZKn6GJwUAjVCSKEChtS6 yWeMUXWtA9q1HLKj5cq6q01j+20ytD2lwKFvfY9lfL/pdC3T44V41OwVzGBqrrNw X4dSiXMrHhxCDh/TzfYbT7DzzX8IGNdb+klCPvVM0xNAazn6FYy/pUq8e3keOxWX bOImrAqMOxBC3YUiPeserGJB2XOGQ37C2ZPFiKguBL2BhSno90GAC1GXGyQRCMJi vAPUS1MKLqbQQQ7pkvVnOGbWHPCHpbdKV8Ue1mbleGOMNHbBkYF4ZwSb7ZLS0S1v 7/pf/6hi9mhuVPrD12ish4yDhlZJzkRS3YE053ZUQzf0LzBk/1ogv1gEif6GKBzo oFsaRH0p12m1x/bqf6n4JjMkccJ4ryOvDu5/U7ZB55cJITf8xAzvjF+CURQT8UJh sna7/RvUNNTimQoC3iMc+Q7wowgSDD5N633h/mdyFHvOG1qPQVw5SKdhWmC4fF7n G7eEbyyMNgvK89T4DnDdzwKgSvGAc3EyieHAz8WmVpvG2uXrFR0KVVB05hHALXec BAhPsCZy2AU= =Nety -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce