{ "document": { "aggregate_severity": { "text": "High" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/ubuntu16.04els/vex/2018/cve-2018-1000115-els_os-ubuntu16_04els.json" } ], "tracking": { "current_release_date": "2026-04-14T08:59:18Z", "generator": { "date": "2026-04-14T08:59:18Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2018-1000115-ELS_OS-UBUNTU16.04ELS", "initial_release_date": "2018-03-05T14:29:00Z", "revision_history": [ { "date": "2018-03-05T14:29:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-04-14T08:59:18Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on CVE-2018-1000115" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Ubuntu 16.04", "product": { "name": "Ubuntu 16.04", "product_id": "Ubuntu-16", "product_identification_helper": { "cpe": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*" } } } ], "category": "product_family", "name": "Ubuntu" } ], "category": "vendor", "name": "Canonical Ltd." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "memcached-0:1.4.25-2ubuntu1.5+tuxcare.els1.amd64", "product": { "name": "memcached-0:1.4.25-2ubuntu1.5+tuxcare.els1.amd64", "product_id": "memcached-0:1.4.25-2ubuntu1.5+tuxcare.els1.amd64", "product_identification_helper": { "purl": "pkg:deb/cloudlinux/memcached@1.4.25-2ubuntu1.5%2Btuxcare.els1?arch=amd64" } } } ], "category": "architecture", "name": "amd64" } ], "category": "vendor", "name": "CloudLinux" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "memcached-0:1.4.25-2ubuntu1.5+tuxcare.els1.amd64 as a component of Ubuntu 16.04", "product_id": "Ubuntu-16:memcached-0:1.4.25-2ubuntu1.5+tuxcare.els1.amd64" }, "product_reference": "memcached-0:1.4.25-2ubuntu1.5+tuxcare.els1.amd64", "relates_to_product_reference": "Ubuntu-16" } ] }, "vulnerabilities": [ { "cve": "CVE-2018-1000115", "cwe": { "id": "CWE-400", "name": "Uncontrolled Resource Consumption" }, "notes": [ { "category": "description", "text": "Memcached version 1.5.5 contains an Insufficient Control of Network Message Volume (Network Amplification, CWE-406) vulnerability in the UDP support of the memcached server that can result in denial of service via network flood (traffic amplification of 1:50,000 has been reported by reliable sources). This attack appear to be exploitable via network connectivity to port 11211 UDP. This vulnerability appears to have been fixed in 1.5.6 due to the disabling of the UDP protocol by default.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "under_investigation": [ "Ubuntu-16:memcached-0:1.4.25-2ubuntu1.5+tuxcare.els1.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2018-1000115" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHBA-2018:2140", "url": "https://access.redhat.com/errata/RHBA-2018:2140" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2018:1593", "url": "https://access.redhat.com/errata/RHSA-2018:1593" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2018:1627", "url": "https://access.redhat.com/errata/RHSA-2018:1627" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2018:2331", "url": "https://access.redhat.com/errata/RHSA-2018:2331" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2018:2857", "url": "https://access.redhat.com/errata/RHSA-2018:2857" }, { "category": "external", "summary": "https://blogs.akamai.com/2018/03/memcached-fueled-13-tbps-attacks.html", "url": "https://blogs.akamai.com/2018/03/memcached-fueled-13-tbps-attacks.html" }, { "category": "external", "summary": "https://github.com/memcached/memcached/commit/dbb7a8af90054bf4ef51f5814ef7ceb17d83d974", "url": "https://github.com/memcached/memcached/commit/dbb7a8af90054bf4ef51f5814ef7ceb17d83d974" }, { "category": "external", "summary": "https://github.com/memcached/memcached/issues/348", "url": "https://github.com/memcached/memcached/issues/348" }, { "category": "external", "summary": "https://github.com/memcached/memcached/wiki/ReleaseNotes156", "url": "https://github.com/memcached/memcached/wiki/ReleaseNotes156" }, { "category": "external", "summary": "https://twitter.com/dormando/status/968579781729009664", "url": "https://twitter.com/dormando/status/968579781729009664" }, { "category": "external", "summary": "https://usn.ubuntu.com/3588-1/", "url": "https://usn.ubuntu.com/3588-1/" }, { "category": "external", "summary": "https://www.debian.org/security/2018/dsa-4218", "url": "https://www.debian.org/security/2018/dsa-4218" }, { "category": "external", "summary": "https://www.exploit-db.com/exploits/44264/", "url": "https://www.exploit-db.com/exploits/44264/" }, { "category": "external", "summary": "https://www.exploit-db.com/exploits/44265/", "url": "https://www.exploit-db.com/exploits/44265/" }, { "category": "external", "summary": "https://www.synology.com/support/security/Synology_SA_18_07", "url": "https://www.synology.com/support/security/Synology_SA_18_07" } ], "release_date": "2018-03-05T14:29:00Z", "remediations": [ { "category": "none_available", "details": "Affected", "product_ids": [ "Ubuntu-16:memcached-0:1.4.25-2ubuntu1.5+tuxcare.els1.amd64" ] } ], "scores": [ { "cvss_v2": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0" }, "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0" }, "products": [ "Ubuntu-16:memcached-0:1.4.25-2ubuntu1.5+tuxcare.els1.amd64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }