{"answers":{"affected":"It affects 11 products.","exploited":"There is no known exploitation of CVE-2018-5740 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2018-5740 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 16 Jan 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-5740 and fix it if it is affected.\n\nWhat it is: CVE-2018-5740 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 16 Jan 2019. 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-2018-5740 in the wild and no public exploit code.\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-2018-5740/ (Markdown: https://insights.sbomify.com/CVE-2018-5740/index.md)","id":"CVE-2018-5740","markdown":"https://insights.sbomify.com/CVE-2018-5740/index.md","name":"CVE-2018-5740","record":{"aliases":["ALPINE-CVE-2018-5740","DEBIAN-CVE-2018-5740","DLA-1485-1","GHSA-rqpc-6vjv-w22p","MGASA-2018-0353","RHSA-2018:2570","RHSA-2018:2571","UBUNTU-CVE-2018-5740","USN-3769-1"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"BIND DNS server","requires_auth":"none","summary":"A flaw in the deny-answer-aliases feature causes an assertion failure in named, leading to denial of service when this non-default feature is enabled.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"isc","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"hp-ux","vendor":"hp"},{"product":"bind","vendor":"isc"},{"product":"data_ontap_edge","vendor":"netapp"},{"product":"leap","vendor":"opensuse"},{"product":"enterprise_linux_desktop","vendor":"redhat"},{"product":"enterprise_linux_server","vendor":"redhat"},{"product":"enterprise_linux_server_aus","vendor":"redhat"},{"product":"enterprise_linux_server_eus","vendor":"redhat"},{"product":"enterprise_linux_workstation","vendor":"redhat"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-617","name":"Reachable Assertion"}],"description":"\"deny-answer-aliases\" is a little-used feature intended to help recursive server operators protect end users against DNS rebinding attacks, a potential method of circumventing the security model used by client browsers. However, a defect in this feature makes it easy, when the feature is in use, to experience an assertion failure in name.c. Affects BIND 9.7.0-\u003e9.8.8, 9.9.0-\u003e9.9.13, 9.10.0-\u003e9.10.8, 9.11.0-\u003e9.11.4, 9.12.0-\u003e9.12.2, 9.13.0-\u003e9.13.2.","ecosystems":["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"],"exploits":{"exploitdb":0,"first_seen":"2018-08-15","github_poc":1,"max_poc_stars":3,"metasploit":0,"nuclei":0,"refs":[{"date":"2018-08-15T01:50:41Z","kind":"github_poc","ref":"https://github.com/sischkg/cve-2018-5740","stars":3,"title":null}],"tier":"poc_unverified"},"has_fix":true,"headline":"A flaw in the \"deny-answer-aliases\" feature can cause an assertion failure in named","id":"CVE-2018-5740","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","hp:hp-ux","isc:bind","opensuse:leap","redhat:enterprise_linux_desktop","redhat:enterprise_linux_server","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_eus","redhat:enterprise_linux_workstation"],"type":"denial_of_service","year":"2018"},"n_packages":88,"n_references":14,"next":{"headline":"Update policies krb5-subdomain and ms-subdomain do not enforce controls promised in their documentation","id":"CVE-2018-5741"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/redhat/bind","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-chroot","purl":"pkg:rpm/redhat/bind-chroot","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-debuginfo","purl":"pkg:rpm/redhat/bind-debuginfo","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-devel","purl":"pkg:rpm/redhat/bind-devel","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-libs","purl":"pkg:rpm/redhat/bind-libs","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-sdb","purl":"pkg:rpm/redhat/bind-sdb","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-utils","purl":"pkg:rpm/redhat/bind-utils","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/redhat/bind","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-chroot","purl":"pkg:rpm/redhat/bind-chroot","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-debuginfo","purl":"pkg:rpm/redhat/bind-debuginfo","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-devel","purl":"pkg:rpm/redhat/bind-devel","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-libs","purl":"pkg:rpm/redhat/bind-libs","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-sdb","purl":"pkg:rpm/redhat/bind-sdb","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-utils","purl":"pkg:rpm/redhat/bind-utils","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/redhat/bind","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-chroot","purl":"pkg:rpm/redhat/bind-chroot","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-debuginfo","purl":"pkg:rpm/redhat/bind-debuginfo","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-devel","purl":"pkg:rpm/redhat/bind-devel","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-libs","purl":"pkg:rpm/redhat/bind-libs","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-sdb","purl":"pkg:rpm/redhat/bind-sdb","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-utils","purl":"pkg:rpm/redhat/bind-utils","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/redhat/bind","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-chroot","purl":"pkg:rpm/redhat/bind-chroot","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-debuginfo","purl":"pkg:rpm/redhat/bind-debuginfo","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-devel","purl":"pkg:rpm/redhat/bind-devel","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-libs","purl":"pkg:rpm/redhat/bind-libs","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-sdb","purl":"pkg:rpm/redhat/bind-sdb","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","fixed":["32:9.8.2-0.68.rc1.el6_10.1"],"introduced":["0"],"last_affected":[],"package":"bind-utils","purl":"pkg:rpm/redhat/bind-utils","source":"RHSA-2018:2571"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["32:9.9.4-61.el7_5.1"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/redhat/bind","source":"RHSA-2018:2570"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["32:9.9.4-61.el7_5.1"],"introduced":["0"],"last_affected":[],"package":"bind-chroot","purl":"pkg:rpm/redhat/bind-chroot","source":"RHSA-2018:2570"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["32:9.9.4-61.el7_5.1"],"introduced":["0"],"last_affected":[],"package":"bind-debuginfo","purl":"pkg:rpm/redhat/bind-debuginfo","source":"RHSA-2018:2570"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["32:9.9.4-61.el7_5.1"],"introduced":["0"],"last_affected":[],"package":"bind-devel","purl":"pkg:rpm/redhat/bind-devel","source":"RHSA-2018:2570"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["32:9.9.4-61.el7_5.1"],"introduced":["0"],"last_affected":[],"package":"bind-libs","purl":"pkg:rpm/redhat/bind-libs","source":"RHSA-2018:2570"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["32:9.9.4-61.el7_5.1"],"introduced":["0"],"last_affected":[],"package":"bind-libs-lite","purl":"pkg:rpm/redhat/bind-libs-lite","source":"RHSA-2018:2570"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["32:9.9.4-61.el7_5.1"],"introduced":["0"],"last_affected":[],"package":"bind-license","purl":"pkg:rpm/redhat/bind-license","source":"RHSA-2018:2570"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["32:9.9.4-61.el7_5.1"],"introduced":["0"],"last_affected":[],"package":"bind-lite-devel","purl":"pkg:rpm/redhat/bind-lite-devel","source":"RHSA-2018:2570"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["32:9.9.4-61.el7_5.1"],"introduced":["0"],"last_affected":[],"package":"bind-pkcs11","purl":"pkg:rpm/redhat/bind-pkcs11","source":"RHSA-2018:2570"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["32:9.9.4-61.el7_5.1"],"introduced":["0"],"last_affected":[],"package":"bind-pkcs11-devel","purl":"pkg:rpm/redhat/bind-pkcs11-devel","source":"RHSA-2018:2570"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["32:9.9.4-61.el7_5.1"],"introduced":["0"],"last_affected":[],"package":"bind-pkcs11-libs","purl":"pkg:rpm/redhat/bind-pkcs11-libs","source":"RHSA-2018:2570"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["32:9.9.4-61.el7_5.1"],"introduced":["0"],"last_affected":[],"package":"bind-pkcs11-utils","purl":"pkg:rpm/redhat/bind-pkcs11-utils","source":"RHSA-2018:2570"}],"prev":{"headline":"Failure to release memory may exhaust system resources","id":"CVE-2018-5739"},"products":["BIND 9"],"published":"2019-01-16","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"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":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-16","vendors":["ISC"]},"summary":"A flaw in the deny-answer-aliases feature causes an assertion failure in named, leading to denial of service when this non-default feature is enabled.","url":"https://insights.sbomify.com/CVE-2018-5740/"}