{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2016-5361 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2016-5361 is a high-severity denial of service vulnerability in n/a, published on 16 Jun 2016. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2016-5361 and fix it if it is affected.\n\nWhat it is: CVE-2016-5361 is a high-severity denial of service vulnerability in n/a, published on 16 Jun 2016. 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-2016-5361 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2016-5361/ (Markdown: https://insights.sbomify.com/CVE-2016-5361/index.md)","id":"CVE-2016-5361","markdown":"https://insights.sbomify.com/CVE-2016-5361/index.md","name":"CVE-2016-5361","record":{"aliases":["GHSA-pvgh-6wjg-x887","RHSA-2016:2603"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"IPsec implementation","requires_auth":"none","summary":"Remote attackers can cause denial of service via traffic amplification using spoofed UDP packets in libreswan IPsec implementation.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"libreswan","vendor":"libreswan"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","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-20","name":"Improper Input Validation"}],"description":"programs/pluto/ikev1.c in libreswan before 3.17 retransmits in initial-responder states, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed UDP packet. NOTE: the original behavior complies with the IKEv1 protocol, but has a required security update from the libreswan vendor; as of 2016-06-10, it is expected that several other IKEv1 implementations will have vendor-required security updates, with separate CVE IDs assigned to each.","ecosystems":["Red Hat:enterprise_linux:7::client","Red Hat:enterprise_linux:7::server","Red Hat:enterprise_linux:7::workstation"],"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":"Denial of service in n/a","id":"CVE-2016-5361","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2016"},"n_packages":6,"n_references":4,"next":{"headline":"OpenStack Neutron allows remote attackers to bypass an intended DHCP-spoofing protection mechanism","id":"CVE-2016-5362"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:3.15-8.el7"],"introduced":["0"],"last_affected":[],"package":"libreswan","purl":"pkg:rpm/redhat/libreswan","source":"RHSA-2016:2603"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:3.15-8.el7"],"introduced":["0"],"last_affected":[],"package":"libreswan-debuginfo","purl":"pkg:rpm/redhat/libreswan-debuginfo","source":"RHSA-2016:2603"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:3.15-8.el7"],"introduced":["0"],"last_affected":[],"package":"libreswan","purl":"pkg:rpm/redhat/libreswan","source":"RHSA-2016:2603"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:3.15-8.el7"],"introduced":["0"],"last_affected":[],"package":"libreswan-debuginfo","purl":"pkg:rpm/redhat/libreswan-debuginfo","source":"RHSA-2016:2603"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:3.15-8.el7"],"introduced":["0"],"last_affected":[],"package":"libreswan","purl":"pkg:rpm/redhat/libreswan","source":"RHSA-2016:2603"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:3.15-8.el7"],"introduced":["0"],"last_affected":[],"package":"libreswan-debuginfo","purl":"pkg:rpm/redhat/libreswan-debuginfo","source":"RHSA-2016:2603"}],"prev":{"headline":"Memory corruption in n/a","id":"CVE-2016-5360"},"products":["n/a"],"published":"2016-06-16","related":[{"cvss_score":9.3,"headline":"Race condition in n/a","id":"CVE-2013-7283","kev_date_added":null,"published":"2014-01-09"},{"cvss_score":7.5,"headline":"IKEv2 Denial of Service via malformed fragmentation","id":"CVE-2026-12413","kev_date_added":null,"published":"2026-07-02"},{"cvss_score":7.5,"headline":"IKEv1 Denial of Service via RSA-SHA1 (PKCS#1 Version 1.5 Encrypted) authentication payload","id":"CVE-2026-50721","kev_date_added":null,"published":"2026-07-02"},{"cvss_score":7.5,"headline":"IKEv2 Denial of Service via RSA-SHA1 (PKCS#1 RSASSA-PKCS1-v1_5) authentication payload","id":"CVE-2026-50722","kev_date_added":null,"published":"2026-07-02"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2023-30570","kev_date_added":null,"published":"2023-05-28"},{"cvss_score":7.5,"headline":"Denial of service in libreswan","id":"CVE-2023-2295","kev_date_added":null,"published":"2023-05-17"},{"cvss_score":7.5,"headline":"Denial of service in libreswan","id":"CVE-2020-1763","kev_date_added":null,"published":"2020-05-12"}],"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)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-06","vendors":["n/a"]},"summary":"Remote attackers can cause denial of service via traffic amplification using spoofed UDP packets in libreswan IPsec implementation.","url":"https://insights.sbomify.com/CVE-2016-5361/"}