{ "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/cloudlinux7els/vex/2022/cve-2022-3204-els_os-cloudlinux7els.json" } ], "tracking": { "current_release_date": "2026-01-21T14:05:44Z", "generator": { "date": "2026-01-21T14:05:44Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2022-3204-ELS_OS-CLOUDLINUX7ELS", "initial_release_date": "2022-09-26T14:15:00Z", "revision_history": [ { "date": "2022-09-26T14:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-01-21T14:05:44Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security 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"unbound-python-0:1.6.6-5.el7_8.x86_64 as a component of CloudLinux 7", "product_id": "CloudLinux-7:unbound-python-0:1.6.6-5.el7_8.x86_64" }, "product_reference": "unbound-python-0:1.6.6-5.el7_8.x86_64", "relates_to_product_reference": "CloudLinux-7" }, { "category": "default_component_of", "full_product_name": { "name": "unbound-0:1.6.6-5.el7_8.x86_64 as a component of CloudLinux 7", "product_id": "CloudLinux-7:unbound-0:1.6.6-5.el7_8.x86_64" }, "product_reference": "unbound-0:1.6.6-5.el7_8.x86_64", "relates_to_product_reference": "CloudLinux-7" }, { "category": "default_component_of", "full_product_name": { "name": "unbound-libs-0:1.6.6-5.el7_8.i686 as a component of CloudLinux 7", "product_id": "CloudLinux-7:unbound-libs-0:1.6.6-5.el7_8.i686" }, "product_reference": "unbound-libs-0:1.6.6-5.el7_8.i686", "relates_to_product_reference": "CloudLinux-7" }, { "category": "default_component_of", "full_product_name": { "name": "unbound-libs-0:1.6.6-5.el7_8.x86_64 as a component of CloudLinux 7", "product_id": "CloudLinux-7:unbound-libs-0:1.6.6-5.el7_8.x86_64" }, "product_reference": "unbound-libs-0:1.6.6-5.el7_8.x86_64", "relates_to_product_reference": "CloudLinux-7" }, { "category": "default_component_of", "full_product_name": { "name": "unbound-devel-0:1.6.6-5.el7_8.i686 as a component of CloudLinux 7", "product_id": "CloudLinux-7:unbound-devel-0:1.6.6-5.el7_8.i686" }, "product_reference": "unbound-devel-0:1.6.6-5.el7_8.i686", "relates_to_product_reference": "CloudLinux-7" }, { "category": "default_component_of", "full_product_name": { "name": "unbound-devel-0:1.6.6-5.el7_8.x86_64 as a component of CloudLinux 7", "product_id": "CloudLinux-7:unbound-devel-0:1.6.6-5.el7_8.x86_64" }, "product_reference": "unbound-devel-0:1.6.6-5.el7_8.x86_64", "relates_to_product_reference": "CloudLinux-7" } ] }, "vulnerabilities": [ { "cve": "CVE-2022-3204", "cwe": { "id": "CWE-400", "name": "Uncontrolled Resource Consumption" }, "notes": [ { "category": "description", "text": "A vulnerability named 'Non-Responsive Delegation Attack' (NRDelegation Attack) has been discovered in various DNS resolving software. The NRDelegation Attack works by having a malicious delegation with a considerable number of non responsive nameservers. The attack starts by querying a resolver for a record that relies on those unresponsive nameservers. The attack can cause a resolver to spend a lot of time/resources resolving records under a malicious delegation point where a considerable number of unresponsive NS records reside. It can trigger high CPU usage in some resolver implementations that continually look in the cache for resolved NS records in that delegation. This can lead to degraded performance and eventually denial of service in orchestrated attacks. Unbound does not suffer from high CPU usage, but resources are still needed for resolving the malicious delegation. Unbound will keep trying to resolve the record until hard limits are reached. Based on the nature of the attack and the replies, different limits could be reached. From version 1.16.3 on, Unbound introduces fixes for better performance when under load, by cutting opportunistic queries for nameserver discovery and DNSKEY prefetching and limiting the number of times a delegation point can issue a cache lookup for missing records.", "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": { "fixed": [ "CloudLinux-7:unbound-0:1.6.6-5.el7_8.tuxcare.els3.x86_64", "CloudLinux-7:unbound-devel-0:1.6.6-5.el7_8.tuxcare.els3.i686", "CloudLinux-7:unbound-devel-0:1.6.6-5.el7_8.tuxcare.els3.x86_64", "CloudLinux-7:unbound-libs-0:1.6.6-5.el7_8.tuxcare.els3.i686", "CloudLinux-7:unbound-libs-0:1.6.6-5.el7_8.tuxcare.els3.x86_64", "CloudLinux-7:unbound-python-0:1.6.6-5.el7_8.tuxcare.els3.x86_64" ], "known_affected": [ "CloudLinux-7:unbound-0:1.6.6-5.el7_8.x86_64", "CloudLinux-7:unbound-devel-0:1.6.6-5.el7_8.i686", "CloudLinux-7:unbound-devel-0:1.6.6-5.el7_8.x86_64", "CloudLinux-7:unbound-libs-0:1.6.6-5.el7_8.i686", "CloudLinux-7:unbound-libs-0:1.6.6-5.el7_8.x86_64", "CloudLinux-7:unbound-python-0:1.6.6-5.el7_8.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2022-3204" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2023/03/msg00024.html", "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00024.html" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35QGS5FBQTG3DBSK7QV67PA64P24ABHY/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35QGS5FBQTG3DBSK7QV67PA64P24ABHY/" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3G2HS6CYPSIGAKO6QLEZPG3RD6AMPB7B/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3G2HS6CYPSIGAKO6QLEZPG3RD6AMPB7B/" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S4EU6DMJXQFMAIE6SLAH4H5RNRU6VQL/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S4EU6DMJXQFMAIE6SLAH4H5RNRU6VQL/" }, { "category": "external", "summary": "https://security.gentoo.org/glsa/202212-02", "url": "https://security.gentoo.org/glsa/202212-02" }, { "category": "external", "summary": "https://www.nlnetlabs.nl/downloads/unbound/CVE-2022-3204.txt", "url": "https://www.nlnetlabs.nl/downloads/unbound/CVE-2022-3204.txt" } ], "release_date": "2022-09-26T14:15:00Z", "remediations": [ { "category": "vendor_fix", "date": "2025-12-09T19:40:40.649545Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2025:1765309238", "product_ids": [ "CloudLinux-7:unbound-0:1.6.6-5.el7_8.tuxcare.els3.x86_64", "CloudLinux-7:unbound-devel-0:1.6.6-5.el7_8.tuxcare.els3.i686", "CloudLinux-7:unbound-devel-0:1.6.6-5.el7_8.tuxcare.els3.x86_64", "CloudLinux-7:unbound-libs-0:1.6.6-5.el7_8.tuxcare.els3.i686", "CloudLinux-7:unbound-libs-0:1.6.6-5.el7_8.tuxcare.els3.x86_64", "CloudLinux-7:unbound-python-0:1.6.6-5.el7_8.tuxcare.els3.x86_64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2025:1765309238" }, { "category": "none_available", "details": "Affected", "product_ids": [ "CloudLinux-7:unbound-0:1.6.6-5.el7_8.x86_64", "CloudLinux-7:unbound-devel-0:1.6.6-5.el7_8.i686", "CloudLinux-7:unbound-devel-0:1.6.6-5.el7_8.x86_64", "CloudLinux-7:unbound-libs-0:1.6.6-5.el7_8.i686", "CloudLinux-7:unbound-libs-0:1.6.6-5.el7_8.x86_64", "CloudLinux-7:unbound-python-0:1.6.6-5.el7_8.x86_64" ] } ], "scores": [ { "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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "CloudLinux-7:unbound-0:1.6.6-5.el7_8.tuxcare.els3.x86_64", "CloudLinux-7:unbound-0:1.6.6-5.el7_8.x86_64", "CloudLinux-7:unbound-devel-0:1.6.6-5.el7_8.i686", "CloudLinux-7:unbound-devel-0:1.6.6-5.el7_8.tuxcare.els3.i686", "CloudLinux-7:unbound-devel-0:1.6.6-5.el7_8.tuxcare.els3.x86_64", "CloudLinux-7:unbound-devel-0:1.6.6-5.el7_8.x86_64", "CloudLinux-7:unbound-libs-0:1.6.6-5.el7_8.i686", "CloudLinux-7:unbound-libs-0:1.6.6-5.el7_8.tuxcare.els3.i686", "CloudLinux-7:unbound-libs-0:1.6.6-5.el7_8.tuxcare.els3.x86_64", "CloudLinux-7:unbound-libs-0:1.6.6-5.el7_8.x86_64", "CloudLinux-7:unbound-python-0:1.6.6-5.el7_8.tuxcare.els3.x86_64", "CloudLinux-7:unbound-python-0:1.6.6-5.el7_8.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }