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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0428 Important: runc security update 12 February 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: runc Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 7 Red Hat Enterprise Linux WS/Desktop 7 Impact/Access: Root Compromise -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-5736 Reference: ESB-2019.0427 Original Bulletin: https://access.redhat.com/errata/RHSA-2019:0303 - --------------------------BEGIN INCLUDED TEXT-------------------- ===================================================================== Red Hat Security Advisory Synopsis: Important: runc security update Advisory ID: RHSA-2019:0303-01 Product: Red Hat Enterprise Linux Extras Advisory URL: https://access.redhat.com/errata/RHSA-2019:0303 Issue date: 2019-02-11 CVE Names: CVE-2019-5736 ===================================================================== 1. Summary: An update for runc is now available for Red Hat Enterprise Linux 7 Extras. 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: Red Hat Enterprise Linux 7 Extras - aarch64, ppc64le, s390x, x86_64 3. Description: The runC tool is a lightweight, portable implementation of the Open Container Format (OCF) that provides container runtime. Security Fix(es): * A flaw was found in the way runc handled system file descriptors when running containers. A malicious container could use this flaw to overwrite contents of the runc binary and consequently run arbitrary commands on the container host system. (CVE-2019-5736) Additional details about this flaw, including mitigation information, can be found in the vulnerability article linked from the Reference section. 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/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1664908 - CVE-2019-5736 runc: Execution of malicious containers allows for container escape and access to host filesystem 6. Package List: Red Hat Enterprise Linux 7 Extras: Source: runc-1.0.0-59.dev.git2abd837.el7.src.rpm aarch64: runc-1.0.0-59.dev.git2abd837.el7.aarch64.rpm runc-debuginfo-1.0.0-59.dev.git2abd837.el7.aarch64.rpm ppc64le: runc-1.0.0-59.dev.git2abd837.el7.ppc64le.rpm runc-debuginfo-1.0.0-59.dev.git2abd837.el7.ppc64le.rpm s390x: runc-1.0.0-59.dev.git2abd837.el7.s390x.rpm runc-debuginfo-1.0.0-59.dev.git2abd837.el7.s390x.rpm x86_64: runc-1.0.0-59.dev.git2abd837.el7.x86_64.rpm runc-debuginfo-1.0.0-59.dev.git2abd837.el7.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-2019-5736 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/runcescape 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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