{"answers":{"affected":"It affects 12 products.","exploited":"There is no known exploitation of CVE-2021-25220 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-25220 is a medium-severity vulnerability in Fedoraproject Fedora, published on 23 Mar 2022. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-25220 and fix it if it is affected.\n\nWhat it is: CVE-2021-25220 is a medium-severity vulnerability in Fedoraproject Fedora, published on 23 Mar 2022. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-25220 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-2021-25220/ (Markdown: https://insights.sbomify.com/CVE-2021-25220/index.md)","id":"CVE-2021-25220","markdown":"https://insights.sbomify.com/CVE-2021-25220/index.md","name":"CVE-2021-25220","record":{"aliases":["ALPINE-CVE-2021-25220","ALSA-2022:7790","ALSA-2022:8385","AZL-9118","CLSA-2022-1649170483","CLSA-2022-1649172068","CLSA-2022-1649172145","CLSA-2022-1649331387","CLSA-2022-1649331579","DEBIAN-CVE-2021-25220","DLA-2955-1","DSA-5105-1","GHSA-v8rf-mvwx-cx29","MGASA-2022-0108","RHSA-2022:7790","RHSA-2022:8385","RLSA-2022:7790","RLSA-2022:8385","SUSE-SU-2022:0908-1","SUSE-SU-2022:0945-1","SUSE-SU-2022:0946-1","SUSE-SU-2022:1616-1","UBUNTU-CVE-2021-25220","USN-5332-2","openSUSE-SU-2022:0945-1","openSUSE-SU-2022:0946-1"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"BIND DNS server","requires_auth":"high_privilege","summary":"Attackers can poison the DNS cache in BIND, causing clients to receive incorrect records and potentially redirecting traffic to malicious servers.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"isc","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"bind","vendor":"isc"},{"product":"junos","vendor":"juniper"},{"product":"h300e_firmware","vendor":"netapp"},{"product":"h300s_firmware","vendor":"netapp"},{"product":"h410c_firmware","vendor":"netapp"},{"product":"h410s_firmware","vendor":"netapp"},{"product":"h500e_firmware","vendor":"netapp"},{"product":"h500s_firmware","vendor":"netapp"},{"product":"h700e_firmware","vendor":"netapp"},{"product":"h700s_firmware","vendor":"netapp"},{"product":"sinec_ins","vendor":"siemens"}],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-444","name":"Inconsistent Interpretation of HTTP Requests"}],"description":"BIND 9.11.0 -\u003e 9.11.36 9.12.0 -\u003e 9.16.26 9.17.0 -\u003e 9.18.0 BIND Supported Preview Editions: 9.11.4-S1 -\u003e 9.11.36-S1 9.16.8-S1 -\u003e 9.16.26-S1 Versions of BIND 9 earlier than those shown - back to 9.1.0, including Supported Preview Editions - are also believed to be affected but have not been tested as they are EOL. The cache could become poisoned with incorrect records leading to queries being made to the wrong servers, which might also result in false information being returned to clients.","ecosystems":["AlmaLinux:8","AlmaLinux:9","Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:8::baseos","Red Hat:enterprise_linux:9::baseos","Rocky Linux:8","Rocky Linux:9","SUSE:Enterprise Storage 6","SUSE:Enterprise Storage 7","SUSE:HPE Helion OpenStack 8","SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS","SUSE:Linux Enterprise High Performance Computing 15 SP2-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS","SUSE:Linux Enterprise High Performance Computing 15-ESPOS","SUSE:Linux Enterprise High Performance Computing 15-LTSS","SUSE:Linux Enterprise Module for Basesystem 15 SP3","SUSE:Linux Enterprise Module for Server Applications 15 SP3","SUSE:Linux Enterprise Real Time 15 SP2","SUSE:Linux Enterprise Server 12 SP2-BCL","SUSE:Linux Enterprise Server 12 SP3-BCL","SUSE:Linux Enterprise Server 12 SP3-LTSS","SUSE:Linux Enterprise Server 12 SP4-LTSS","SUSE:Linux Enterprise Server 12 SP5","SUSE:Linux Enterprise Server 15 SP1-BCL","SUSE:Linux Enterprise Server 15 SP1-LTSS","SUSE:Linux Enterprise Server 15 SP2-BCL","SUSE:Linux Enterprise Server 15 SP2-LTSS","SUSE:Linux Enterprise Server 15-LTSS","SUSE:Linux Enterprise Server for SAP Applications 12 SP3","SUSE:Linux Enterprise Server for SAP Applications 12 SP4","SUSE:Linux Enterprise Server for SAP Applications 12 SP5","SUSE:Linux Enterprise Server for SAP Applications 15","SUSE:Linux Enterprise Server for SAP Applications 15 SP1","SUSE:Linux Enterprise Server for SAP Applications 15 SP2","SUSE:Linux Enterprise Software Development Kit 12 SP5","SUSE:Manager Proxy 4.1","SUSE:Manager Retail Branch Server 4.1","SUSE:Manager Server 4.1","SUSE:OpenStack Cloud 8","SUSE:OpenStack Cloud 9","SUSE:OpenStack Cloud Crowbar 8","SUSE:OpenStack Cloud Crowbar 9","openSUSE:Leap 15.3"],"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":"DNS forwarders - cache poisoning vulnerability","id":"CVE-2021-25220","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"fedoraproject:fedora","products":["fedoraproject:fedora","isc:bind","juniper:junos","netapp:h300e_firmware","netapp:h300s_firmware","netapp:h410c_firmware","netapp:h410s_firmware","netapp:h500e_firmware","netapp:h500s_firmware","netapp:h700e_firmware","netapp:h700s_firmware"],"type":"other","year":"2021"},"n_packages":109,"n_references":10,"next":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2021-25221"},"packages":[{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/almalinux/bind","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-chroot","purl":"pkg:rpm/almalinux/bind-chroot","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-devel","purl":"pkg:rpm/almalinux/bind-devel","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-export-devel","purl":"pkg:rpm/almalinux/bind-export-devel","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-export-libs","purl":"pkg:rpm/almalinux/bind-export-libs","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-libs","purl":"pkg:rpm/almalinux/bind-libs","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-libs-lite","purl":"pkg:rpm/almalinux/bind-libs-lite","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-license","purl":"pkg:rpm/almalinux/bind-license","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-lite-devel","purl":"pkg:rpm/almalinux/bind-lite-devel","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-pkcs11","purl":"pkg:rpm/almalinux/bind-pkcs11","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-pkcs11-devel","purl":"pkg:rpm/almalinux/bind-pkcs11-devel","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-pkcs11-libs","purl":"pkg:rpm/almalinux/bind-pkcs11-libs","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-pkcs11-utils","purl":"pkg:rpm/almalinux/bind-pkcs11-utils","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-sdb","purl":"pkg:rpm/almalinux/bind-sdb","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-sdb-chroot","purl":"pkg:rpm/almalinux/bind-sdb-chroot","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-utils","purl":"pkg:rpm/almalinux/bind-utils","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:8","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"python3-bind","purl":"pkg:rpm/almalinux/python3-bind","source":"ALSA-2022:7790"},{"ecosystem":"AlmaLinux:9","fixed":["12:4.4.2-17.b1.el9"],"introduced":["0"],"last_affected":[],"package":"dhcp-client","purl":"pkg:rpm/almalinux/dhcp-client","source":"ALSA-2022:8385"},{"ecosystem":"AlmaLinux:9","fixed":["12:4.4.2-17.b1.el9"],"introduced":["0"],"last_affected":[],"package":"dhcp-common","purl":"pkg:rpm/almalinux/dhcp-common","source":"ALSA-2022:8385"},{"ecosystem":"AlmaLinux:9","fixed":["12:4.4.2-17.b1.el9"],"introduced":["0"],"last_affected":[],"package":"dhcp-relay","purl":"pkg:rpm/almalinux/dhcp-relay","source":"ALSA-2022:8385"},{"ecosystem":"AlmaLinux:9","fixed":["12:4.4.2-17.b1.el9"],"introduced":["0"],"last_affected":[],"package":"dhcp-server","purl":"pkg:rpm/almalinux/dhcp-server","source":"ALSA-2022:8385"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/redhat/bind","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-chroot","purl":"pkg:rpm/redhat/bind-chroot","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-debuginfo","purl":"pkg:rpm/redhat/bind-debuginfo","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-debugsource","purl":"pkg:rpm/redhat/bind-debugsource","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-devel","purl":"pkg:rpm/redhat/bind-devel","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-export-libs-debuginfo","purl":"pkg:rpm/redhat/bind-export-libs-debuginfo","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-libs","purl":"pkg:rpm/redhat/bind-libs","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-libs-debuginfo","purl":"pkg:rpm/redhat/bind-libs-debuginfo","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-libs-lite","purl":"pkg:rpm/redhat/bind-libs-lite","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-libs-lite-debuginfo","purl":"pkg:rpm/redhat/bind-libs-lite-debuginfo","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-license","purl":"pkg:rpm/redhat/bind-license","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-lite-devel","purl":"pkg:rpm/redhat/bind-lite-devel","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-pkcs11","purl":"pkg:rpm/redhat/bind-pkcs11","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-pkcs11-debuginfo","purl":"pkg:rpm/redhat/bind-pkcs11-debuginfo","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-pkcs11-devel","purl":"pkg:rpm/redhat/bind-pkcs11-devel","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-pkcs11-libs","purl":"pkg:rpm/redhat/bind-pkcs11-libs","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-pkcs11-libs-debuginfo","purl":"pkg:rpm/redhat/bind-pkcs11-libs-debuginfo","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-pkcs11-utils","purl":"pkg:rpm/redhat/bind-pkcs11-utils","source":"RHSA-2022:7790"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["32:9.11.36-5.el8"],"introduced":["0"],"last_affected":[],"package":"bind-pkcs11-utils-debuginfo","purl":"pkg:rpm/redhat/bind-pkcs11-utils-debuginfo","source":"RHSA-2022:7790"}],"prev":{"headline":"Lame cache can be abused to severely degrade resolver performance","id":"CVE-2021-25219"},"products":["BIND"],"published":"2022-03-23","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":"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-16","vendors":["ISC"]},"summary":"Attackers can poison the DNS cache in BIND, causing clients to receive incorrect records and potentially redirecting traffic to malicious servers.","url":"https://insights.sbomify.com/CVE-2021-25220/"}