{ "document": { "aggregate_severity": { "text": "Medium" }, "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/2021/cve-2021-31879-els_os-ubuntu16_04els.json" } ], "title": "Security update on CVE-2021-31879", "tracking": { "current_release_date": "2026-01-19T23:35:53Z", "generator": { "date": "2026-01-19T23:35:53Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2021-31879-ELS_OS-UBUNTU16.04ELS", "initial_release_date": "2021-04-29T05:15:00Z", "revision_history": [ { "date": "2021-04-29T05:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2025-11-29T17:52:31Z", "number": "2", "summary": "Official Publication" }, { "date": "2025-12-23T22:15:38Z", "number": "3", "summary": "Update document" }, { "date": "2026-01-19T23:35:53Z", "number": "4", "summary": "Update document" } ], "status": "final", "version": "4" } }, "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" }, { "branches": [ { "category": "product_version", "name": "wget-0:1.17.1-1ubuntu1.5.amd64", "product": { "name": "wget-0:1.17.1-1ubuntu1.5.amd64", "product_id": "wget-0:1.17.1-1ubuntu1.5.amd64", "product_identification_helper": { "purl": "pkg:deb/ubuntu/wget@1.17.1-1ubuntu1.5?arch=amd64" } } } ], "category": "architecture", "name": "amd64" } ], "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" }, { "category": "default_component_of", "full_product_name": { "name": "wget-0:1.17.1-1ubuntu1.5.amd64 as a component of Ubuntu 16.04", "product_id": "Ubuntu-16:wget-0:1.17.1-1ubuntu1.5.amd64" }, "product_reference": "wget-0:1.17.1-1ubuntu1.5.amd64", "relates_to_product_reference": "Ubuntu-16" } ] }, "vulnerabilities": [ { "cve": "CVE-2021-31879", "cwe": { "id": "CWE-601", "name": "URL Redirection to Untrusted Site ('Open Redirect')" }, "notes": [ { "category": "description", "text": "GNU Wget through 1.21.1 does not omit the Authorization header upon a redirect to a different origin, a related issue to CVE-2018-1000007.", "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": { "known_affected": [ "Ubuntu-16:wget-0:1.17.1-1ubuntu1.5+tuxcare.els1.amd64", "Ubuntu-16:wget-0:1.17.1-1ubuntu1.5.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2021-31879" }, { "category": "external", "summary": "https://mail.gnu.org/archive/html/bug-wget/2021-02/msg00002.html", "url": "https://mail.gnu.org/archive/html/bug-wget/2021-02/msg00002.html" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20210618-0002/", "url": "https://security.netapp.com/advisory/ntap-20210618-0002/" } ], "release_date": "2021-04-29T05:15:00Z", "remediations": [ { "category": "no_fix_planned", "details": "The CVE is disputed as a vulnerability and as of 2024 there is no upstream fix", "product_ids": [ "Ubuntu-16:wget-0:1.17.1-1ubuntu1.5+tuxcare.els1.amd64", "Ubuntu-16:wget-0:1.17.1-1ubuntu1.5.amd64" ] } ], "scores": [ { "cvss_v2": { "accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "version": "2.0" }, "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1" }, "products": [ "Ubuntu-16:wget-0:1.17.1-1ubuntu1.5+tuxcare.els1.amd64", "Ubuntu-16:wget-0:1.17.1-1ubuntu1.5.amd64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ] } ] }