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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.4417 OpenShift Container Platform 4.1.24 security update 22 November 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: OpenShift Container Platform Publisher: Red Hat Operating System: Red Hat Impact/Access: Root Compromise -- Existing Account Denial of Service -- Existing Account Provide Misleading Information -- Existing Account Access Confidential Data -- Existing Account Unauthorised Access -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-16884 CVE-2019-15718 CVE-2019-14287 CVE-2019-11244 CVE-2018-12207 Reference: ASB-2019.0313 ESB-2019.4386 ESB-2019.4359 ESB-2019.4339 ESB-2019.4301 ESB-2019.4286 Original Bulletin: https://access.redhat.com/errata/RHSA-2019:3940 https://access.redhat.com/errata/RHSA-2019:3941 https://access.redhat.com/errata/RHSA-2019:3942 Comment: This bulletin contains three (3) Red Hat security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- ====================================================================== Red Hat Security Advisory Synopsis: Moderate: OpenShift Container Platform 4.1.24 runc security update Advisory ID: RHSA-2019:3940-01 Product: Red Hat OpenShift Enterprise Advisory URL: https://access.redhat.com/errata/RHSA-2019:3940 Issue date: 2019-11-21 CVE Names: CVE-2019-16884 ====================================================================== 1. Summary: An update for runc is now available for Red Hat OpenShift Container Platform 4.1. Red Hat Product Security has rated this update as having a security impact of Moderate. 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: Red Hat OpenShift Container Platform 4.1 - x86_64 3. Description: Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the runC container image for Red Hat OpenShift Container Platform 4.1.24. The runC tool is a lightweight, portable implementation of the Open Container Format (OCF) that provides a container runtime. Security Fix(es): * runc: AppArmor/SELinux bypass with malicious image that specifies a volume at the /proc directory (CVE-2019-16884) 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 OpenShift Container Platform 4.1 see the following documentation, which will be updated shortly for release 4.1.24, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.1/release_notes/ocp-4-1-rel ease-notes.html 5. Bugs fixed (https://bugzilla.redhat.com/): 1757214 - CVE-2019-16884 runc: AppArmor/SELinux bypass with malicious image that specifies a volume at /proc 6. Package List: Red Hat OpenShift Container Platform 4.1: Source: runc-1.0.0-62.rc8.rhaos4.1.git3cbe540.el8.src.rpm x86_64: runc-1.0.0-62.rc8.rhaos4.1.git3cbe540.el8.x86_64.rpm runc-debuginfo-1.0.0-62.rc8.rhaos4.1.git3cbe540.el8.x86_64.rpm runc-debugsource-1.0.0-62.rc8.rhaos4.1.git3cbe540.el8.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-2019-16884 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. ====================================================================== Red Hat Security Advisory Synopsis: Important: OpenShift Container Platform 4.1.24 machine-os-content-container security update Advisory ID: RHSA-2019:3941-01 Product: Red Hat OpenShift Enterprise Advisory URL: https://access.redhat.com/errata/RHSA-2019:3941 Issue date: 2019-11-21 CVE Names: CVE-2018-12207 CVE-2019-14287 CVE-2019-15718 ====================================================================== 1. Summary: Red Hat OpenShift Container Platform release 4.1.24 is now available with updates to packages and images that fix several bugs and add enhancements. 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. Description: Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This is a text-only advisory for the machine-os-content container image, which includes RPM packages for Red Hat Enterprise Linux CoreOS. Security Fix(es): * A flaw was found in the way Intel CPUs handle inconsistency between, virtual to physical memory address translations in CPU's local cache and system software's Paging structure entries. A privileged guest user may use this flaw to induce a hardware Machine Check Error on the host processor, resulting in a severe DoS scenario by halting the processor. System software like OS OR Virtual Machine Monitor (VMM) use virtual memory system for storing program instructions and data in memory. Virtual Memory system uses Paging structures like Page Tables and Page Directories to manage system memory. The processor's Memory Management Unit (MMU) uses Paging structure entries to translate program's virtual memory addresses to physical memory addresses. The processor stores these address translations into its local cache buffer called - Translation Lookaside Buffer (TLB). TLB has two parts, one for instructions and other for data addresses. System software can modify its Paging structure entries to change address mappings OR certain attributes like page size etc. Upon such Paging structure alterations in memory, system software must invalidate the corresponding address translations in the processor's TLB cache. But before this TLB invalidation takes place, a privileged guest user may trigger an instruction fetch operation, which could use an already cached, but now invalid, virtual to physical address translation from Instruction TLB (ITLB). Thus accessing an invalid physical memory address and resulting in halting the processor due to the Machine Check Error (MCE) on Page Size Change. (CVE-2018-12207) * A flaw was found in the way sudo implemented running commands with an arbitrary user ID. If a sudoers entry is written to allow users to run a command as any user except root, this flaw can be used by an attacker to bypass that restriction. (CVE-2019-14287) * An improper authorization flaw was discovered in systemd-resolved in the way it configures the exposed DBus interface org.freedesktop.resolve1. An unprivileged local user could call all DBus methods, even when marked as privileged operations. An attacker could abuse this flaw by changing the DNS, Search Domain, LLMNR, DNSSEC, and other network link settings without any authorization, giving them control of the network names resolution process and causing the system to communicate with wrong or malicious servers. (CVE-2019-15718) 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. 3. Solution: For OpenShift Container Platform 4.1 see the following documentation, which will be updated shortly for release 4.1.24, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.1/release_notes/ocp-4-1-rel ease-notes.html 4. Bugs fixed (https://bugzilla.redhat.com/): 1646768 - CVE-2018-12207 hw: Machine Check Error on Page Size Change (IFU) 1746057 - CVE-2019-15718 systemd: systemd-resolved allows unprivileged users to configure DNS 1760531 - CVE-2019-14287 sudo: Privilege escalation via 'Runas' specification with 'ALL' keyword 5. References: https://access.redhat.com/security/cve/CVE-2018-12207 https://access.redhat.com/security/cve/CVE-2019-14287 https://access.redhat.com/security/cve/CVE-2019-15718 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/ifu-page-mce 6. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. ===================================================================== Red Hat Security Advisory Synopsis: Low: OpenShift Container Platform 4.1.24 openshift security update Advisory ID: RHSA-2019:3942-01 Product: Red Hat OpenShift Enterprise Advisory URL: https://access.redhat.com/errata/RHSA-2019:3942 Issue date: 2019-11-21 CVE Names: CVE-2019-11244 ===================================================================== 1. Summary: An update for openshift is now available for Red Hat OpenShift Container Platform 4.1. Red Hat Product Security has rated this update as having a security impact of Low. 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: Red Hat OpenShift Container Platform 4.1 - x86_64 3. Description: Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the openshift container images for Red Hat OpenShift Container Platform 4.1.24. Security Fix(es): * A flaw was found in kubectl that leaves http-cache files with read/write permissions for any user. In conjunction with a non-default value for - - --cache-dir, this could lead to the cache content being placed in a location accessible to other users in the system. (CVE-2019-11244) 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 OpenShift Container Platform 4.1 see the following documentation, which will be updated shortly for release 4.1.24, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.1/release_notes/ocp-4-1-rel ease-notes.html 5. Bugs fixed (https://bugzilla.redhat.com/): 1703209 - CVE-2019-11244 kubernetes: Schema info written with world-writeable permissions when cached 6. Package List: Red Hat OpenShift Container Platform 4.1: Source: openshift-4.1.24-201911080309.git.0.c41acf2.el7.src.rpm x86_64: openshift-clients-4.1.24-201911080309.git.0.c41acf2.el7.x86_64.rpm openshift-clients-redistributable-4.1.24-201911080309.git.0.c41acf2.el7.x86_64.rpm openshift-hyperkube-4.1.24-201911080309.git.0.c41acf2.el7.x86_64.rpm Red Hat OpenShift Container Platform 4.1: Source: openshift-4.1.24-201911080309.git.0.c41acf2.el8.src.rpm x86_64: openshift-clients-4.1.24-201911080309.git.0.c41acf2.el8.x86_64.rpm openshift-clients-redistributable-4.1.24-201911080309.git.0.c41acf2.el8.x86_64.rpm openshift-hyperkube-4.1.24-201911080309.git.0.c41acf2.el8.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-2019-11244 https://access.redhat.com/security/updates/classification/#low 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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