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Title: EGI SVG 'ALERT'[TLP:WHITE] Docker symlink-race attack CVE-2018-15664 CVE [EGI-SVG-CVE-2018-15664] Date: 2019-05-29 Updated: 2019-09-16 Redhat released a fix in July Affected software and risk ========================== Vulnerability concerning Docker Package : Docker CVE ID : CVE-2018-15644 Docker has been found to be vulnerable to a symlink-race attack. Some information on this has been released publicly [R 1] [R 2] but SVG is still investigating the implications. Actions required/recommended ============================ Sites or anyone in the EGI community running Docker should be ready to patch or take other mitigating action when a patch or mitigation is available. Sites failing to act and/or failing to respond to requests from the EGI CSIRT team risk site suspension. Component installation information ================================== **UPDATE** RedHat has produced a fix, see [R 4] For ubuntu information see [R 5] For Debian see [R 6] Mitigation ========== None defined yet. More information ================ See [R 1], [R 2] SVG will provide an update when action is recommended. SVG has assessed the potential impact of the vulnerability and concluded that affected hosts would be vulnerable only if they allow unprivileged users to launch their own containers through a Docker service. That is, Worker Nodes that happen to be Docker containers themselves would, for example, not be vulnerable. Although investigations are still ongoing, given the public attention for this issue we are sending this Alert. **UPDATE 2019-09-16 ** Issue fixed, advisory updated. TLP and URL =========== ** WHITE information - Unlimited distribution - see https://wiki.egi.eu/wiki/EGI_CSIRT:TLP for distribution restrictions*** URL: https://wiki.egi.eu/wiki/SVG:Advisory-SVG-CVE-2018-15664 Minor updates may be made without re-distribution to the sites Comments ======== Comments or questions should be sent to svg-rat at mailman.egi.eu If you find or become aware of another vulnerability which is relevant to EGI you may report it by e-mail to report-vulnerability at egi.eu the EGI Software Vulnerability Group will take a look according to the procedure defined in [R 3] Note that this is undergoing revision to fully handle vulnerabilities in the EOSC-hub era. References ========== [R 1] https://seclists.org/oss-sec/2019/q2/131 [R 2] https://nvd.nist.gov/vuln/detail/CVE-2018-15664 [R 3] https://documents.egi.eu/public/ShowDocument?docid=3145 [R 4] https://access.redhat.com/security/cve/cve-2018-15664 [R 5] https://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-15664.html [R 6] https://security-tracker.debian.org/tracker/CVE-2018-15664 Credit ====== SVG was alerted to this vulnerability by Barbara Krasovec Timeline ======== Yyyy-mm-dd [EGI-SVG-CVE-2018-15664]] 2019-05-28 SVG alerted to this issue by Barbara Krasovec 2019-05-28 Acknowledgement from the EGI SVG to the reporter 2019-05-28 Some discussions and investigations carried out by SVG. 2019-05-29 'Alert' sent to sites 2019-09-16 Updated as from checking through found that the issue has been fixed by various software providers. Context ======= This advisory has been prepared as part of the effort to fulfil EGI SVG's purpose "To minimize the risk to the EGI infrastructure arising from software vulnerabilities" The risk is that assessed by the group, according to the EGI SVG issue handling procedure [R 3] in the context of how the software is used in the EGI infrastructure. It is the opinion of the group, we do not guarantee it to be correct. The risk may also be higher or lower in other deployments depending on how the software is used. Others may re-use this information provided they:- 1) Respect the provided TLP classification 2) Credit the EGI https://www.egi.eu/ Software Vulnerability Group Note that the SVG issue handling procedure is currently under review, to take account of the increasing inhomogeneity of the EGI infrastructure and the services in the EOSC-hub catalogue. On behalf of the EGI SVG,