{ "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-2018-20483-els_os-ubuntu16_04els.json" } ], "tracking": { "current_release_date": "2026-04-24T11:49:54Z", "generator": { "date": "2026-04-24T11:49:54Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2018-20483-ELS_OS-UBUNTU16.04ELS", "initial_release_date": "2018-12-26T18:29:00Z", "revision_history": [ { "date": "2018-12-26T18:29:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-04-20T15:27:20Z", "number": "2", "summary": "Official Publication" }, { "date": "2026-04-24T11:49:54Z", "number": "3", "summary": "Update document" } ], "status": "final", "version": "3" }, "title": "Security update on CVE-2018-20483" }, "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": "wget-0:1.17.1-1ubuntu1.5+tuxcare.els1.amd64", "product": { "name": "wget-0:1.17.1-1ubuntu1.5+tuxcare.els1.amd64", "product_id": "wget-0:1.17.1-1ubuntu1.5+tuxcare.els1.amd64", "product_identification_helper": { "purl": "pkg:deb/cloudlinux/wget@1.17.1-1ubuntu1.5%2Btuxcare.els1?arch=amd64" } } } ], "category": "architecture", "name": "amd64" } ], "category": "vendor", "name": "CloudLinux" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "wget-0:1.17.1-1ubuntu1.5+tuxcare.els1.amd64 as a component of Ubuntu 16.04", "product_id": "Ubuntu-16:wget-0:1.17.1-1ubuntu1.5+tuxcare.els1.amd64" }, "product_reference": "wget-0:1.17.1-1ubuntu1.5+tuxcare.els1.amd64", "relates_to_product_reference": "Ubuntu-16" } ] }, "vulnerabilities": [ { "cve": "CVE-2018-20483", "cwe": { "id": "CWE-200", "name": "Exposure of Sensitive Information to an Unauthorized Actor" }, "notes": [ { "category": "description", "text": "set_file_metadata in xattr.c in GNU Wget before 1.20.1 stores a file's origin URL in the user.xdg.origin.url metadata attribute of the extended attributes of the downloaded file, which allows local users to obtain sensitive information (e.g., credentials contained in the URL) by reading this attribute, as demonstrated by getfattr. This also applies to Referer information in the user.xdg.referrer.url metadata attribute. According to 2016-07-22 in the Wget ChangeLog, user.xdg.origin.url was partially based on the behavior of fwrite_xattr in tool_xattr.c in curl.", "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" }, { "category": "other", "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.", "title": "Statement" } ], "product_status": { "known_not_affected": [ "Ubuntu-16:wget-0:1.17.1-1ubuntu1.5+tuxcare.els1.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2018-20483" }, { "category": "external", "summary": "http://git.savannah.gnu.org/cgit/wget.git/tree/NEWS", "url": "http://git.savannah.gnu.org/cgit/wget.git/tree/NEWS" }, { "category": "external", "summary": "http://www.securityfocus.com/bid/106358", "url": "http://www.securityfocus.com/bid/106358" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2019:3701", "url": "https://access.redhat.com/errata/RHSA-2019:3701" }, { "category": "external", "summary": "https://security.gentoo.org/glsa/201903-08", "url": "https://security.gentoo.org/glsa/201903-08" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20190321-0002/", "url": "https://security.netapp.com/advisory/ntap-20190321-0002/" }, { "category": "external", "summary": "https://twitter.com/marcan42/status/1077676739877232640", "url": "https://twitter.com/marcan42/status/1077676739877232640" }, { "category": "external", "summary": "https://usn.ubuntu.com/3943-1/", "url": "https://usn.ubuntu.com/3943-1/" } ], "release_date": "2018-12-26T18:29:00Z", "scores": [ { "cvss_v2": { "accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "baseSeverity": "LOW", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0" }, "cvss_v3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.0" }, "products": [ "Ubuntu-16:wget-0:1.17.1-1ubuntu1.5+tuxcare.els1.amd64" ] } ], "threats": [ { "category": "impact", "details": "Important" }, { "category": "impact", "details": "important", "product_ids": [ "Ubuntu-16:wget-0:1.17.1-1ubuntu1.5+tuxcare.els1.amd64" ] } ] } ] }