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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0647 SUSE-SU-2019:0537-1 Security update for caasp-container-manifests, changelog-generator-data-sles12sp3-velum, kubernetes-salt, rubygem-aes_key_wrap, rubygem-json-jwt, sles12sp3-velum-image, velum 4 March 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: caasp-container-manifests changelog-generator-data-sles12sp3-velum kubernetes-salt rubygem-aes_key_wrap rubygem-json-jwt sles12sp3-velum-image velum Publisher: SUSE Operating System: SUSE Impact/Access: Unauthorised Access -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-1000539 Reference: ESB-2018.2602 Original Bulletin: https://www.suse.com/support/update/announcement/2019/suse-su-20190537-1.html - --------------------------BEGIN INCLUDED TEXT-------------------- SUSE Security Update: Security update for caasp-container-manifests, changelog-generator-data-sles12sp3-velum, kubernetes-salt, rubygem-aes_key_wrap, rubygem-json-jwt, sles12sp3-velum-image, velum ______________________________________________________________________________ Announcement ID: SUSE-SU-2019:0537-1 Rating: important References: #1121145 #1121162 #1121165 #1121166 Cross-References: CVE-2018-1000539 Affected Products: SUSE CaaS Platform 3.0 ______________________________________________________________________________ An update that solves one vulnerability and has three fixes is now available. Description: This update for caasp-container-manifests, changelog-generator-data-sles12sp3-velum, kubernetes-salt, rubygem-aes_key_wrap, rubygem-json-jwt, sles12sp3-velum-image, velum provides the following fixes: Security issue fixed in rubygem-json-jwt and velum: o CVE-2018-1000539: Fixed an improper verification of cryptographic signatures during the decryption of encrypted with AES-GCM JSON Web Tokens which could lead to a forged authentication tag. (bsc#1099243, bsc#1121166) caasp-container-manifests: o Disable the kubelet servers on the admin node. The admin node is not part of a k8s cluster, so enabling the endpoints for interaction by the user/ api-server is not needed. Instead (only on the admin node) all endpoints (healthz and server) that are usually exposed by the kubelet are disabled. (bsc#1121145) kubernetes-salt: o haproxy: Block requests to /internal-api endpoint. The internal api endpoints expose sensitive data and thus should not be accessed via internet. This internal api was developed inside the velum project and haproxy was allowing requests to that endpoint. Velum listens on 0.0.0.0 and needs to block for that specific path. With this change any request to anything that starts with /internal-api is blocked. (bsc#1121162) velum: o Changed kubeconfig download from get to post request. The kubeconfig download request was previously done via GET request and the file content could be easily modified through url parameters. Changing from GET to POST method takes advantage of CSRF protection. (bsc#1121165) Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: o SUSE CaaS Platform 3.0: To install this update, use the SUSE CaaS Platform Velum dashboard. It will inform you if it detects new updates and let you then trigger updating of the complete cluster in a controlled way. Package List: o SUSE CaaS Platform 3.0 (x86_64): sles12-velum-image-3.1.10-3.36.3 o SUSE CaaS Platform 3.0 (noarch): caasp-container-manifests-3.0.0+git_r297_c3bfc41-3.9.1 kubernetes-salt-3.0.0+git_r935_34ce12d-3.50.1 References: o https://www.suse.com/security/cve/CVE-2018-1000539.html o https://bugzilla.suse.com/1121145 o https://bugzilla.suse.com/1121162 o https://bugzilla.suse.com/1121165 o https://bugzilla.suse.com/1121166 - --------------------------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. 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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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