{"answers":{"affected":"It affects 21 products.","exploited":"Yes. Attackers have exploited CVE-2015-5477 in the wild since at least 8 Oct 2026.","fix":"Upgrade to a fixed version. US federal agencies must fix it by 11 Oct 2026.","what":"CVE-2015-5477 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 29 Jul 2015. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2015-5477 and fix it if it is affected.\n\nWhat it is: CVE-2015-5477 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 29 Jul 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2015-5477 in the wild since at least 8 Oct 2026.\n\nAffected product: Canonical Ubuntu Linux. 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-2015-5477/ (Markdown: https://insights.sbomify.com/CVE-2015-5477/index.md)","id":"CVE-2015-5477","markdown":"https://insights.sbomify.com/CVE-2015-5477/index.md","name":"CVE-2015-5477","record":{"aliases":["DEBIAN-CVE-2015-5477","DLA-285-1","DSA-3319-1","GHSA-4622-vjcx-p39j","MGASA-2015-0298","RHSA-2015:1513","RHSA-2015:1514","RHSA-2015:1515","SUSE-SU-2015:1304-1","SUSE-SU-2015:1305-1","SUSE-SU-2015:1316-1","UBUNTU-CVE-2015-5477"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"ISC BIND DNS server","requires_auth":"none","summary":"Remote attackers can crash the ISC BIND DNS server by sending malicious TKEY queries, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"os_x_server","vendor":"apple"},{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"hp-ux","vendor":"hp"},{"product":"openvms","vendor":"hp"},{"product":"dns","vendor":"hpe"},{"product":"vcx","vendor":"hpe"},{"product":"bind","vendor":"isc"},{"product":"junos","vendor":"juniper"},{"product":"clustered_data_ontap","vendor":"netapp"},{"product":"evergreen","vendor":"opensuse"},{"product":"opensuse","vendor":"opensuse"},{"product":"solaris","vendor":"oracle"},{"product":"vm_server","vendor":"oracle"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"enterprise_linux_aus","vendor":"redhat"},{"product":"linux_enterprise_debuginfo","vendor":"suse"},{"product":"linux_enterprise_desktop","vendor":"suse"},{"product":"linux_enterprise_server","vendor":"suse"},{"product":"linux_enterprise_software_development_kit","vendor":"suse"}],"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-19","name":null},{"id":"CWE-617","name":"Reachable Assertion"}],"description":"named in ISC BIND 9.x before 9.9.7-P2 and 9.10.x before 9.10.2-P3 allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) via TKEY queries.","ecosystems":["Red Hat:enterprise_linux:5::client","Red Hat:enterprise_linux:5::client_workstation","Red Hat:enterprise_linux:5::server","Red Hat:enterprise_linux:6::client","Red Hat:enterprise_linux:6::computenode","Red Hat:enterprise_linux:6::server","Red Hat:enterprise_linux:6::workstation","Red Hat:enterprise_linux:7::client","Red Hat:enterprise_linux:7::computenode","Red Hat:enterprise_linux:7::server","Red Hat:enterprise_linux:7::workstation","SUSE:Linux Enterprise Desktop 11 SP3","SUSE:Linux Enterprise Desktop 11 SP4","SUSE:Linux Enterprise Desktop 12","SUSE:Linux Enterprise Server 11 SP1-LTSS","SUSE:Linux Enterprise Server 11 SP1-TERADATA","SUSE:Linux Enterprise Server 11 SP2-LTSS","SUSE:Linux Enterprise Server 11 SP3","SUSE:Linux Enterprise Server 11 SP3-TERADATA","SUSE:Linux Enterprise Server 11 SP4","SUSE:Linux Enterprise Server 12","SUSE:Linux Enterprise Server for SAP Applications 11 SP3","SUSE:Linux Enterprise Server for SAP Applications 11 SP4","SUSE:Linux Enterprise Server for SAP Applications 12","SUSE:Linux Enterprise Software Development Kit 11 SP3","SUSE:Linux Enterprise Software Development Kit 11 SP4","SUSE:Linux Enterprise Software Development Kit 12"],"exploits":{"exploitdb":2,"first_seen":"2015-07-28","github_poc":7,"max_poc_stars":64,"metasploit":1,"nuclei":0,"refs":[{"date":"2015-07-31T23:29:43Z","kind":"github_poc","ref":"https://github.com/robertdavidgraham/cve-2015-5477","stars":64,"title":"PoC exploit for CVE-2015-5477 BIND9 TKEY assertion failure"},{"date":"2015-08-01T09:27:23Z","kind":"github_poc","ref":"https://github.com/elceef/tkeypoc","stars":14,"title":"PoC exploit code for CVE-2015-5477 BIND9 TKEY remote DoS vulnerability"},{"date":"2015-08-04T21:11:45Z","kind":"github_poc","ref":"https://github.com/hmlio/vaas-cve-2015-5477","stars":1,"title":"Vulnerability as a service: showcasing CVS-2015-5447, a DDoS condition in the bind9 software"},{"date":"2015-08-09T16:09:52Z","kind":"github_poc","ref":"https://github.com/knqyf263/cve-2015-5477","stars":1,"title":"PoC for BIND9 TKEY assert DoS (CVE-2015-5477)"},{"date":"2015-08-19T02:35:36Z","kind":"github_poc","ref":"https://github.com/ilanyu/cve-2015-5477","stars":1,"title":"PoC exploit for CVE-2015-5477 in php"},{"date":"2015-07-28","kind":"metasploit","ref":"auxiliary/dos/dns/bind_tkey","stars":null,"title":"BIND TKEY Query Denial of Service"},{"date":"2015-08-01","kind":"exploitdb","ref":"37721","stars":null,"title":"ISC BIND 9 - TKEY (PoC)"},{"date":"2015-08-05","kind":"exploitdb","ref":"37723","stars":null,"title":"ISC BIND 9 - TKEY Remote Denial of Service (PoC)"}],"tier":"exploited"},"has_fix":true,"headline":"ISC BIND Data Processing Errors","id":"CVE-2015-5477","indexable":true,"kev":{"dateAdded":"2026-10-08","dueDate":"2026-10-11","knownRansomwareCampaignUse":"Unknown","product":"BIND","requiredAction":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","vendorProject":"ISC","vulnerabilityName":" ISC BIND Data Processing Errors Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","hp:hp-ux","isc:bind","juniper:junos","netapp:clustered_data_ontap","opensuse:opensuse","oracle:solaris","redhat:enterprise_linux","redhat:enterprise_linux_aus","suse:linux_enterprise_debuginfo","suse:linux_enterprise_desktop","suse:linux_enterprise_server","suse:linux_enterprise_software_development_kit"],"type":"denial_of_service","year":"2015"},"n_packages":120,"n_references":45,"next":{"headline":"Denial of service in n/a","id":"CVE-2015-5479"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:5::client","fixed":["30:9.3.6-25.P1.el5_11.3"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/redhat/bind","source":"RHSA-2015:1514"},{"ecosystem":"Red Hat:enterprise_linux:5::client","fixed":["30:9.3.6-25.P1.el5_11.3"],"introduced":["0"],"last_affected":[],"package":"bind-debuginfo","purl":"pkg:rpm/redhat/bind-debuginfo","source":"RHSA-2015:1514"},{"ecosystem":"Red Hat:enterprise_linux:5::client","fixed":["30:9.3.6-25.P1.el5_11.3"],"introduced":["0"],"last_affected":[],"package":"bind-libs","purl":"pkg:rpm/redhat/bind-libs","source":"RHSA-2015:1514"},{"ecosystem":"Red Hat:enterprise_linux:5::client","fixed":["30:9.3.6-25.P1.el5_11.3"],"introduced":["0"],"last_affected":[],"package":"bind-sdb","purl":"pkg:rpm/redhat/bind-sdb","source":"RHSA-2015:1514"},{"ecosystem":"Red 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Hat:enterprise_linux:5::client_workstation","fixed":["30:9.3.6-25.P1.el5_11.3"],"introduced":["0"],"last_affected":[],"package":"bind-devel","purl":"pkg:rpm/redhat/bind-devel","source":"RHSA-2015:1514"},{"ecosystem":"Red Hat:enterprise_linux:5::client_workstation","fixed":["30:9.3.6-25.P1.el5_11.3"],"introduced":["0"],"last_affected":[],"package":"bind-libbind-devel","purl":"pkg:rpm/redhat/bind-libbind-devel","source":"RHSA-2015:1514"},{"ecosystem":"Red Hat:enterprise_linux:5::client_workstation","fixed":["32:9.7.0-21.P2.el5_11.2"],"introduced":["0"],"last_affected":[],"package":"bind97","purl":"pkg:rpm/redhat/bind97","source":"RHSA-2015:1515"},{"ecosystem":"Red Hat:enterprise_linux:5::client_workstation","fixed":["32:9.7.0-21.P2.el5_11.2"],"introduced":["0"],"last_affected":[],"package":"bind97-chroot","purl":"pkg:rpm/redhat/bind97-chroot","source":"RHSA-2015:1515"},{"ecosystem":"Red Hat:enterprise_linux:5::client_workstation","fixed":["32:9.7.0-21.P2.el5_11.2"],"introduced":["0"],"last_affected":[],"package":"bind97-debuginfo","purl":"pkg:rpm/redhat/bind97-debuginfo","source":"RHSA-2015:1515"},{"ecosystem":"Red Hat:enterprise_linux:5::client_workstation","fixed":["32:9.7.0-21.P2.el5_11.2"],"introduced":["0"],"last_affected":[],"package":"bind97-devel","purl":"pkg:rpm/redhat/bind97-devel","source":"RHSA-2015:1515"},{"ecosystem":"Red Hat:enterprise_linux:5::client_workstation","fixed":["32:9.7.0-21.P2.el5_11.2"],"introduced":["0"],"last_affected":[],"package":"bind97-libs","purl":"pkg:rpm/redhat/bind97-libs","source":"RHSA-2015:1515"},{"ecosystem":"Red Hat:enterprise_linux:5::client_workstation","fixed":["32:9.7.0-21.P2.el5_11.2"],"introduced":["0"],"last_affected":[],"package":"bind97-utils","purl":"pkg:rpm/redhat/bind97-utils","source":"RHSA-2015:1515"},{"ecosystem":"Red Hat:enterprise_linux:5::client_workstation","fixed":["30:9.3.6-25.P1.el5_11.3"],"introduced":["0"],"last_affected":[],"package":"caching-nameserver","purl":"pkg:rpm/redhat/caching-nameserver","source":"RHSA-2015:1514"},{"ecosystem":"Red Hat:enterprise_linux:5::server","fixed":["30:9.3.6-25.P1.el5_11.3"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/redhat/bind","source":"RHSA-2015:1514"},{"ecosystem":"Red Hat:enterprise_linux:5::server","fixed":["30:9.3.6-25.P1.el5_11.3"],"introduced":["0"],"last_affected":[],"package":"bind-chroot","purl":"pkg:rpm/redhat/bind-chroot","source":"RHSA-2015:1514"},{"ecosystem":"Red Hat:enterprise_linux:5::server","fixed":["30:9.3.6-25.P1.el5_11.3"],"introduced":["0"],"last_affected":[],"package":"bind-debuginfo","purl":"pkg:rpm/redhat/bind-debuginfo","source":"RHSA-2015:1514"},{"ecosystem":"Red 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Hat:enterprise_linux:5::server","fixed":["30:9.3.6-25.P1.el5_11.3"],"introduced":["0"],"last_affected":[],"package":"bind-utils","purl":"pkg:rpm/redhat/bind-utils","source":"RHSA-2015:1514"},{"ecosystem":"Red Hat:enterprise_linux:5::server","fixed":["32:9.7.0-21.P2.el5_11.2"],"introduced":["0"],"last_affected":[],"package":"bind97","purl":"pkg:rpm/redhat/bind97","source":"RHSA-2015:1515"},{"ecosystem":"Red Hat:enterprise_linux:5::server","fixed":["32:9.7.0-21.P2.el5_11.2"],"introduced":["0"],"last_affected":[],"package":"bind97-chroot","purl":"pkg:rpm/redhat/bind97-chroot","source":"RHSA-2015:1515"},{"ecosystem":"Red Hat:enterprise_linux:5::server","fixed":["32:9.7.0-21.P2.el5_11.2"],"introduced":["0"],"last_affected":[],"package":"bind97-debuginfo","purl":"pkg:rpm/redhat/bind97-debuginfo","source":"RHSA-2015:1515"},{"ecosystem":"Red Hat:enterprise_linux:5::server","fixed":["32:9.7.0-21.P2.el5_11.2"],"introduced":["0"],"last_affected":[],"package":"bind97-devel","purl":"pkg:rpm/redhat/bind97-devel","source":"RHSA-2015:1515"},{"ecosystem":"Red Hat:enterprise_linux:5::server","fixed":["32:9.7.0-21.P2.el5_11.2"],"introduced":["0"],"last_affected":[],"package":"bind97-libs","purl":"pkg:rpm/redhat/bind97-libs","source":"RHSA-2015:1515"},{"ecosystem":"Red Hat:enterprise_linux:5::server","fixed":["32:9.7.0-21.P2.el5_11.2"],"introduced":["0"],"last_affected":[],"package":"bind97-utils","purl":"pkg:rpm/redhat/bind97-utils","source":"RHSA-2015:1515"},{"ecosystem":"Red Hat:enterprise_linux:5::server","fixed":["30:9.3.6-25.P1.el5_11.3"],"introduced":["0"],"last_affected":[],"package":"caching-nameserver","purl":"pkg:rpm/redhat/caching-nameserver","source":"RHSA-2015:1514"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.37.rc1.el6_7.2"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/redhat/bind","source":"RHSA-2015:1513"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.37.rc1.el6_7.2"],"introduced":["0"],"last_affected":[],"package":"bind-chroot","purl":"pkg:rpm/redhat/bind-chroot","source":"RHSA-2015:1513"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.37.rc1.el6_7.2"],"introduced":["0"],"last_affected":[],"package":"bind-debuginfo","purl":"pkg:rpm/redhat/bind-debuginfo","source":"RHSA-2015:1513"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.37.rc1.el6_7.2"],"introduced":["0"],"last_affected":[],"package":"bind-devel","purl":"pkg:rpm/redhat/bind-devel","source":"RHSA-2015:1513"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.37.rc1.el6_7.2"],"introduced":["0"],"last_affected":[],"package":"bind-libs","purl":"pkg:rpm/redhat/bind-libs","source":"RHSA-2015:1513"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.37.rc1.el6_7.2"],"introduced":["0"],"last_affected":[],"package":"bind-sdb","purl":"pkg:rpm/redhat/bind-sdb","source":"RHSA-2015:1513"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.37.rc1.el6_7.2"],"introduced":["0"],"last_affected":[],"package":"bind-utils","purl":"pkg:rpm/redhat/bind-utils","source":"RHSA-2015:1513"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["32:9.8.2-0.37.rc1.el6_7.2"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/redhat/bind","source":"RHSA-2015:1513"}],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2015-5475"},"products":["n/a"],"published":"2015-07-29","related":[{"cvss_score":7.5,"headline":"Weak cryptography in n/a","id":"CVE-2016-4754","kev_date_added":null,"published":"2016-09-25"},{"cvss_score":7.5,"headline":"SQL injection in n/a","id":"CVE-2014-4424","kev_date_added":null,"published":"2014-09-19"},{"cvss_score":6.8,"headline":"Weak cryptography in n/a","id":"CVE-2013-5143","kev_date_added":null,"published":"2013-10-24"},{"cvss_score":6.1,"headline":"Cross-site scripting in n/a","id":"CVE-2014-4406","kev_date_added":null,"published":"2014-09-19"},{"cvss_score":5,"headline":"Security feature bypass in n/a","id":"CVE-2015-1150","kev_date_added":null,"published":"2015-04-28"},{"cvss_score":5,"headline":"Auth bypass in n/a","id":"CVE-2015-1151","kev_date_added":null,"published":"2015-04-28"}],"sources":[{"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":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"BSD-3-Clause","name":"Metasploit"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-09","vendors":["n/a"]},"summary":"Remote attackers can crash the ISC BIND DNS server by sending malicious TKEY queries, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2015-5477/"}