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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.2412 Moderate: docker security and bug fix update 17 August 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: docker Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 7 Red Hat Enterprise Linux WS/Desktop 7 Linux variants Impact/Access: Unauthorised Access -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-10892 Original Bulletin: https://access.redhat.com/errata/RHSA-2018:2482 Comment: This advisory references vulnerabilities in products which run on platforms other than Red Hat. It is recommended that administrators running docker check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: docker security and bug fix update Advisory ID: RHSA-2018:2482-01 Product: Red Hat Enterprise Linux Extras Advisory URL: https://access.redhat.com/errata/RHSA-2018:2482 Issue date: 2018-08-16 CVE Names: CVE-2018-10892 ===================================================================== 1. Summary: An update for docker is now available for Red Hat Enterprise Linux 7 Extras. 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 Enterprise Linux 7 Extras - ppc64le, s390x, x86_64 3. Description: Docker is an open-source engine that automates the deployment of any application as a lightweight, portable, self-sufficient container that runs virtually anywhere. Security Fix(es): * docker: container breakout without selinux in enforcing mode (CVE-2018-10892) 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. This issue was discovered by Antonio Murdaca (Red Hat). Bug Fix(es): * Previously, the `dontaudit` and `allow` SELinux rules were missing, so the kernel raised a SELinux AVC message. Consequently, some commands did not work as expected. This update adds the missing rules, and the commands now run successfully. (BZ#1550967) * Previously, during a restart the container daemon did not restore the state of a container correctly if an exec'ed process was associated with the container. Consequently, the container daemon aborted with 'panic: close of nil channel' when the daemon was handling the termination of the exec'ed process. This bug has been fixed, and the container daemon no longer panics in the aforementioned scenario. (BZ#1554121) * Previously, bind mounts were resolved before using them inside a container. Consequently, symlinks could not be mounted inside of the container. With this update, the source of a bind mount is not resolved. As a result, it is possible to bind mount symlinks again into a container. (BZ#1603201) 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/): 1550967 - Running systemd in container causes AVC denials about mounton /proc and write core_pattern 1598581 - CVE-2018-10892 docker: container breakout without selinux in enforcing mode 1603201 - [Regression] docker can't bindmount symbolic links to namespaces (/proc/PID/ns/*) 6. Package List: Red Hat Enterprise Linux 7 Extras: Source: docker-1.13.1-74.git6e3bb8e.el7.src.rpm ppc64le: docker-1.13.1-74.git6e3bb8e.el7.ppc64le.rpm docker-client-1.13.1-74.git6e3bb8e.el7.ppc64le.rpm docker-common-1.13.1-74.git6e3bb8e.el7.ppc64le.rpm docker-debuginfo-1.13.1-74.git6e3bb8e.el7.ppc64le.rpm docker-logrotate-1.13.1-74.git6e3bb8e.el7.ppc64le.rpm docker-lvm-plugin-1.13.1-74.git6e3bb8e.el7.ppc64le.rpm docker-novolume-plugin-1.13.1-74.git6e3bb8e.el7.ppc64le.rpm docker-rhel-push-plugin-1.13.1-74.git6e3bb8e.el7.ppc64le.rpm docker-v1.10-migrator-1.13.1-74.git6e3bb8e.el7.ppc64le.rpm s390x: docker-1.13.1-74.git6e3bb8e.el7.s390x.rpm docker-client-1.13.1-74.git6e3bb8e.el7.s390x.rpm docker-common-1.13.1-74.git6e3bb8e.el7.s390x.rpm docker-debuginfo-1.13.1-74.git6e3bb8e.el7.s390x.rpm docker-logrotate-1.13.1-74.git6e3bb8e.el7.s390x.rpm docker-lvm-plugin-1.13.1-74.git6e3bb8e.el7.s390x.rpm docker-novolume-plugin-1.13.1-74.git6e3bb8e.el7.s390x.rpm docker-rhel-push-plugin-1.13.1-74.git6e3bb8e.el7.s390x.rpm docker-v1.10-migrator-1.13.1-74.git6e3bb8e.el7.s390x.rpm x86_64: docker-1.13.1-74.git6e3bb8e.el7.x86_64.rpm docker-client-1.13.1-74.git6e3bb8e.el7.x86_64.rpm docker-common-1.13.1-74.git6e3bb8e.el7.x86_64.rpm docker-debuginfo-1.13.1-74.git6e3bb8e.el7.x86_64.rpm docker-logrotate-1.13.1-74.git6e3bb8e.el7.x86_64.rpm docker-lvm-plugin-1.13.1-74.git6e3bb8e.el7.x86_64.rpm docker-novolume-plugin-1.13.1-74.git6e3bb8e.el7.x86_64.rpm docker-rhel-push-plugin-1.13.1-74.git6e3bb8e.el7.x86_64.rpm docker-v1.10-migrator-1.13.1-74.git6e3bb8e.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-2018-10892 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 2018 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBW3Wg8NzjgjWX9erEAQiL/A//Ueh2lMCox45Sb8UCjP7Rpz7JONWiGdfO On14skAMnaHuHFz65nU92e5C+iVuDszcAg45W8pDRYlxPRfJ6b2okgHgXuvBhVQG Bn10tweaW909OKWD7qS7NN1EB2BgqdFbF9jyMgwT11HnZ9scBd04VLTTCbs47sLu kbtep6qmpPFeqyQxUfbSUS73VC75DVwdWSi0vCX2z1EoDMDSCONswMt81GysImGW 67J6l+hVgCBz5hZ/Dx3ykhmNIfNFLec8JNNgHrC9frTXVpUOkJXEwrWlF5oPnY0J Li0upyZjt7cWZIeGwTmOwvaldTWgpntMBXRZJ8aql3/iPvRSM1xu7OLE2Ct3LhLY He8GZnh3rnR+Yq+Xl8KG6Ru8+/T7GF+5ajMAN1A9nMN8Rw07EJQP4zCcLK43OOeq RTMdJS8GvRx+jiLyYOxNSN3PvKb1rqitb4mPxABCCgKTTJLEKJPSptpLa+rWnUMv z/G68KaxV6fTOW0ZR8S96G3GVfGDfkcjNaRbIA8oYzG8ElZncnikDSqoK0CI2klb UT4Vg1BwCt1afH4A4JkFFm6LVriD85qPQs10xVLmMZQkUgaAD66UnRp0V0aoBV8O HV+nwrXCSNi4sF1AghLIqDg8BY9si9lvd77cvil7GzVlNvIg/yIidWbKrCs+YWpa BC92Q7HPUPI= =DNgE - -----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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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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