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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.3050 RHV-H security update (redhat-virtualization-host) 10 September 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: RHV-H Publisher: Red Hat Operating System: Red Hat Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Root Compromise -- Existing Account Denial of Service -- Remote/Unauthenticated Unauthorised Access -- Remote/Unauthenticated Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-32399 CVE-2021-31535 CVE-2021-22555 CVE-2021-3715 CVE-2021-3621 Reference: ESB-2021.3015 ESB-2021.2957 ESB-2021.2924 ESB-2021.2899 ESB-2021.2796 ESB-2021.2717 ESB-2021.2710 Original Bulletin: https://access.redhat.com/errata/RHSA-2021:3477 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: RHV-H security update (redhat-virtualization-host) 4.3.18 Advisory ID: RHSA-2021:3477-01 Product: Red Hat Virtualization Advisory URL: https://access.redhat.com/errata/RHSA-2021:3477 Issue date: 2021-09-09 CVE Names: CVE-2021-3621 CVE-2021-3715 CVE-2021-22555 CVE-2021-31535 CVE-2021-32399 ===================================================================== 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): * sssd: shell command injection in sssctl (CVE-2021-3621) * kernel: use-after-free in route4_change() in net/sched/cls_route.c (CVE-2021-3715) * kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555) * libX11: missing request length checks (CVE-2021-31535) * kernel: race condition for removal of the HCI controller (CVE-2021-32399) For more 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/): 1961822 - CVE-2021-31535 libX11: missing request length checks 1970807 - CVE-2021-32399 kernel: race condition for removal of the HCI controller 1975142 - CVE-2021-3621 sssd: shell command injection in sssctl 1980101 - CVE-2021-22555 kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c 1993988 - CVE-2021-3715 kernel: use-after-free in route4_change() in net/sched/cls_route.c 6. Package List: Red Hat Virtualization 4 Hypervisor for RHEL 7: Source: redhat-virtualization-host-4.3.18-20210903.0.el7_9.src.rpm noarch: redhat-virtualization-host-image-update-4.3.18-20210903.0.el7_9.noarch.rpm RHEL 7-based RHEV-H for RHEV 4 (build requirements): Source: redhat-release-virtualization-host-4.3.18-1.el7ev.src.rpm redhat-virtualization-host-4.3.18-20210903.0.el7_9.src.rpm noarch: redhat-virtualization-host-image-update-4.3.18-20210903.0.el7_9.noarch.rpm redhat-virtualization-host-image-update-placeholder-4.3.18-1.el7ev.noarch.rpm x86_64: redhat-release-virtualization-host-4.3.18-1.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-2021-3621 https://access.redhat.com/security/cve/CVE-2021-3715 https://access.redhat.com/security/cve/CVE-2021-22555 https://access.redhat.com/security/cve/CVE-2021-31535 https://access.redhat.com/security/cve/CVE-2021-32399 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYTnSd9zjgjWX9erEAQiz5A//Ts2JvzwTT3hGdLSq+8URB3Iax5bNtKA/ I/Wy+C3N6dxtnv3Zi6SlPN2zkurCvSpEI5QotrqT2WUVsTDs4gvnjxIb1MGOzuFm zYFw+QoiViyIssZ1q4MiPAMLgJmYwn/J5tNR8ads0zV6RwJRAatwEsfMKnCNxG1z 9PQb0xHzwbH2bdBZjO/8h+rCI2IyUljX8f+jtG4FiMpCyPHIrDrSb5XSgpqmDmWo OH613TmS62rLF0s0OoLn/kc0N9n3r2+NnCe1qy56rIXXMDkDlN3+nRE2V6sOYwuV kW7Y23zBdavs5AhtwQJdYKrvFjppsVfSFz0+thFw5N7y93ZNoELfwTcczECgGr+M LVk/2YrATtyGFAg3Ot7NmlYYuB8Zy5+0+n7pKZwbhRWF1oHh0fA+yapXeZ+MntJ8 Zn8+zNkluiMRqyd/2cTgBX2tucFQTr3FBATW80bhtl4PEEmTXvXHWpLc3RqgdSqe EFdWlwg6seU47XmQjMd8zufxbJXcCPj21Xc6TbkWUCPv0LQ9h168M7KHHAllTy8D iSDpvQUyvVCosPhD+TsbF3qnlMAWkHb+IMJgKvfag0HwIdYr4qgSgTtU2Dtb3UBc Wc8sB6uyVB7GHzqJaPc3wfWJ55LuNeDkH1SxTxOrfF3nw9aCnxoQo1z04q7pMUe3 C3aC+Aa64Dc= =d7rO - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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