{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2022-3204 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2022-3204 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 26 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-3204 and fix it if it is affected.\n\nWhat it is: CVE-2022-3204 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 26 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2022-3204 in the wild and no public exploit code.\n\nAffected product: Fedoraproject Fedora. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2022-3204/ (Markdown: https://insights.sbomify.com/CVE-2022-3204/index.md)","id":"CVE-2022-3204","markdown":"https://insights.sbomify.com/CVE-2022-3204/index.md","name":"CVE-2022-3204","record":{"aliases":["ALPINE-CVE-2022-3204","ALSA-2023:2370","ALSA-2023:2771","AZL-11033","CLSA-2024-1725554505","DEBIAN-CVE-2022-3204","GHSA-7mc5-x7xh-682h","MGASA-2022-0361","OESA-2022-1972","RHSA-2023:2370","RHSA-2023:2771","RLSA-2023:2771","UBUNTU-CVE-2022-3204","USN-5732-1","openSUSE-SU-2024:12368-1"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"DNS resolver","requires_auth":"none","summary":"Attackers can cause denial of service in DNS resolvers by exploiting non-responsive delegation attacks, leading to resource exhaustion and degraded performance.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"NLnet Labs","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"unbound","vendor":"nlnetlabs"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"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.","ecosystems":["AlmaLinux:8","AlmaLinux:9","Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:9::appstream","Red Hat:enterprise_linux:9::crb","Rocky Linux:8","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"NRDelegation Attack","id":"CVE-2022-3204","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"fedoraproject:fedora","products":["fedoraproject:fedora","nlnetlabs:unbound"],"type":"denial_of_service","year":"2022"},"n_packages":30,"n_references":6,"next":{"headline":"Controller: cross site scripting in automation controller ui","id":"CVE-2022-3205"},"packages":[{"ecosystem":"AlmaLinux:8","fixed":["1.16.2-5.el8"],"introduced":["0"],"last_affected":[],"package":"python3-unbound","purl":"pkg:rpm/almalinux/python3-unbound","source":"ALSA-2023:2771"},{"ecosystem":"AlmaLinux:8","fixed":["1.16.2-5.el8"],"introduced":["0"],"last_affected":[],"package":"unbound","purl":"pkg:rpm/almalinux/unbound","source":"ALSA-2023:2771"},{"ecosystem":"AlmaLinux:8","fixed":["1.16.2-5.el8"],"introduced":["0"],"last_affected":[],"package":"unbound-devel","purl":"pkg:rpm/almalinux/unbound-devel","source":"ALSA-2023:2771"},{"ecosystem":"AlmaLinux:8","fixed":["1.16.2-5.el8"],"introduced":["0"],"last_affected":[],"package":"unbound-libs","purl":"pkg:rpm/almalinux/unbound-libs","source":"ALSA-2023:2771"},{"ecosystem":"AlmaLinux:9","fixed":["1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"python3-unbound","purl":"pkg:rpm/almalinux/python3-unbound","source":"ALSA-2023:2370"},{"ecosystem":"AlmaLinux:9","fixed":["1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"unbound","purl":"pkg:rpm/almalinux/unbound","source":"ALSA-2023:2370"},{"ecosystem":"AlmaLinux:9","fixed":["1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"unbound-devel","purl":"pkg:rpm/almalinux/unbound-devel","source":"ALSA-2023:2370"},{"ecosystem":"AlmaLinux:9","fixed":["1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"unbound-libs","purl":"pkg:rpm/almalinux/unbound-libs","source":"ALSA-2023:2370"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.16.2-5.el8"],"introduced":["0"],"last_affected":[],"package":"python3-unbound","purl":"pkg:rpm/redhat/python3-unbound","source":"RHSA-2023:2771"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.16.2-5.el8"],"introduced":["0"],"last_affected":[],"package":"python3-unbound-debuginfo","purl":"pkg:rpm/redhat/python3-unbound-debuginfo","source":"RHSA-2023:2771"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.16.2-5.el8"],"introduced":["0"],"last_affected":[],"package":"unbound","purl":"pkg:rpm/redhat/unbound","source":"RHSA-2023:2771"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.16.2-5.el8"],"introduced":["0"],"last_affected":[],"package":"unbound-debuginfo","purl":"pkg:rpm/redhat/unbound-debuginfo","source":"RHSA-2023:2771"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.16.2-5.el8"],"introduced":["0"],"last_affected":[],"package":"unbound-debugsource","purl":"pkg:rpm/redhat/unbound-debugsource","source":"RHSA-2023:2771"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.16.2-5.el8"],"introduced":["0"],"last_affected":[],"package":"unbound-devel","purl":"pkg:rpm/redhat/unbound-devel","source":"RHSA-2023:2771"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.16.2-5.el8"],"introduced":["0"],"last_affected":[],"package":"unbound-libs","purl":"pkg:rpm/redhat/unbound-libs","source":"RHSA-2023:2771"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.16.2-5.el8"],"introduced":["0"],"last_affected":[],"package":"unbound-libs-debuginfo","purl":"pkg:rpm/redhat/unbound-libs-debuginfo","source":"RHSA-2023:2771"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"python3-unbound","purl":"pkg:rpm/redhat/python3-unbound","source":"RHSA-2023:2370"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"python3-unbound-debuginfo","purl":"pkg:rpm/redhat/python3-unbound-debuginfo","source":"RHSA-2023:2370"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"unbound","purl":"pkg:rpm/redhat/unbound","source":"RHSA-2023:2370"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"unbound-debuginfo","purl":"pkg:rpm/redhat/unbound-debuginfo","source":"RHSA-2023:2370"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"unbound-debugsource","purl":"pkg:rpm/redhat/unbound-debugsource","source":"RHSA-2023:2370"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"unbound-libs","purl":"pkg:rpm/redhat/unbound-libs","source":"RHSA-2023:2370"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"unbound-libs-debuginfo","purl":"pkg:rpm/redhat/unbound-libs-debuginfo","source":"RHSA-2023:2370"},{"ecosystem":"Red Hat:enterprise_linux:9::crb","fixed":["0:1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"python3-unbound-debuginfo","purl":"pkg:rpm/redhat/python3-unbound-debuginfo","source":"RHSA-2023:2370"},{"ecosystem":"Red Hat:enterprise_linux:9::crb","fixed":["0:1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"unbound-debuginfo","purl":"pkg:rpm/redhat/unbound-debuginfo","source":"RHSA-2023:2370"},{"ecosystem":"Red Hat:enterprise_linux:9::crb","fixed":["0:1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"unbound-debugsource","purl":"pkg:rpm/redhat/unbound-debugsource","source":"RHSA-2023:2370"},{"ecosystem":"Red Hat:enterprise_linux:9::crb","fixed":["0:1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"unbound-devel","purl":"pkg:rpm/redhat/unbound-devel","source":"RHSA-2023:2370"},{"ecosystem":"Red Hat:enterprise_linux:9::crb","fixed":["0:1.16.2-3.el9"],"introduced":["0"],"last_affected":[],"package":"unbound-libs-debuginfo","purl":"pkg:rpm/redhat/unbound-libs-debuginfo","source":"RHSA-2023:2370"},{"ecosystem":"Rocky Linux:8","fixed":["0:1.16.2-5.12.el8_10"],"introduced":["0"],"last_affected":[],"package":"unbound","purl":"pkg:rpm/rocky-linux/unbound?distro=rocky-linux-8\u0026epoch=0","source":"RLSA-2023:2771"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["1.16.3-1.1"],"introduced":["0"],"last_affected":[],"package":"unbound","purl":"pkg:rpm/opensuse/unbound\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:12368-1"}],"prev":{"headline":"ORing net IAP-420(+) Hidden Functionality","id":"CVE-2022-3203"},"products":["Unbound"],"published":"2022-09-26","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"BSD","name":"Rocky Linux","prefix":"RLSA"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-05-05","vendors":["NLnet Labs"]},"summary":"Attackers can cause denial of service in DNS resolvers by exploiting non-responsive delegation attacks, leading to resource exhaustion and degraded performance.","url":"https://insights.sbomify.com/CVE-2022-3204/"}