{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2020-15166 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2020-15166 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 11 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-15166 and fix it if it is affected.\n\nWhat it is: CVE-2020-15166 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 11 Sep 2020. 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-2020-15166 in the wild and no public exploit code.\n\nAffected product: Debian Debian 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-2020-15166/ (Markdown: https://insights.sbomify.com/CVE-2020-15166/index.md)","id":"CVE-2020-15166","markdown":"https://insights.sbomify.com/CVE-2020-15166/index.md","name":"CVE-2020-15166","record":{"aliases":["ALPINE-CVE-2020-15166","DEBIAN-CVE-2020-15166","DLA-2443-1","DSA-4761-1","GHSA-25wp-cf8g-938m","JLSEC-2026-513","MGASA-2020-0367","OESA-2024-1133","SUSE-SU-2020:3264-1","UBUNTU-CVE-2020-15166","openSUSE-SU-2020:1907-1","openSUSE-SU-2020:1910-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"ZeroMQ messaging library","requires_auth":"none","summary":"Attackers can cause a denial of service in ZeroMQ by preventing legitimate clients from exchanging messages via TCP endpoints.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"libzmq","vendor":"zeromq"}],"cvss":{"score":7.5,"severity":"high","source":"cna","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":"In ZeroMQ before version 4.3.3, there is a denial-of-service vulnerability. Users with TCP transport public endpoints, even with CURVE/ZAP enabled, are impacted. If a raw TCP socket is opened and connected to an endpoint that is fully configured with CURVE/ZAP, legitimate clients will not be able to exchange any message. Handshakes complete successfully, and messages are delivered to the library, but the server application never receives them. This is patched in version 4.3.3.","ecosystems":["SUSE:Linux Enterprise High Performance Computing 15-ESPOS","SUSE:Linux Enterprise High Performance Computing 15-LTSS","SUSE:Linux Enterprise Module for Basesystem 15 SP1","SUSE:Linux Enterprise Module for Basesystem 15 SP2","SUSE:Linux Enterprise Module for Package Hub 15 SP1","SUSE:Linux Enterprise Module for Package Hub 15 SP2","SUSE:Linux Enterprise Server 15-LTSS","SUSE:Linux Enterprise Server for SAP Applications 15","openSUSE:Leap 15.1","openSUSE:Leap 15.2"],"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 ZeroMQ","id":"CVE-2020-15166","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","fedoraproject:fedora"],"type":"denial_of_service","year":"2020"},"n_packages":18,"n_references":7,"next":{"headline":"Arbitrary code execution via configuration file in Miller","id":"CVE-2020-15167"},"packages":[{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15-ESPOS","fixed":["1.2.1-4.2.3"],"introduced":["0"],"last_affected":[],"package":"libunwind","purl":"pkg:rpm/suse/libunwind\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS","source":"SUSE-SU-2020:3264-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15-ESPOS","fixed":["4.2.3-3.15.4"],"introduced":["0"],"last_affected":[],"package":"zeromq","purl":"pkg:rpm/suse/zeromq\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS","source":"SUSE-SU-2020:3264-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15-LTSS","fixed":["1.2.1-4.2.3"],"introduced":["0"],"last_affected":[],"package":"libunwind","purl":"pkg:rpm/suse/libunwind\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS","source":"SUSE-SU-2020:3264-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15-LTSS","fixed":["4.2.3-3.15.4"],"introduced":["0"],"last_affected":[],"package":"zeromq","purl":"pkg:rpm/suse/zeromq\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS","source":"SUSE-SU-2020:3264-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP1","fixed":["1.2.1-4.2.3"],"introduced":["0"],"last_affected":[],"package":"libunwind","purl":"pkg:rpm/suse/libunwind\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1","source":"SUSE-SU-2020:3264-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP1","fixed":["4.2.3-3.15.4"],"introduced":["0"],"last_affected":[],"package":"zeromq","purl":"pkg:rpm/suse/zeromq\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1","source":"SUSE-SU-2020:3264-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP2","fixed":["1.2.1-4.2.3"],"introduced":["0"],"last_affected":[],"package":"libunwind","purl":"pkg:rpm/suse/libunwind\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2","source":"SUSE-SU-2020:3264-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP2","fixed":["4.2.3-3.15.4"],"introduced":["0"],"last_affected":[],"package":"zeromq","purl":"pkg:rpm/suse/zeromq\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2","source":"SUSE-SU-2020:3264-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Package Hub 15 SP1","fixed":["1.2.1-4.2.3"],"introduced":["0"],"last_affected":[],"package":"libunwind","purl":"pkg:rpm/suse/libunwind\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP1","source":"SUSE-SU-2020:3264-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Package Hub 15 SP2","fixed":["1.2.1-4.2.3"],"introduced":["0"],"last_affected":[],"package":"libunwind","purl":"pkg:rpm/suse/libunwind\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP2","source":"SUSE-SU-2020:3264-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15-LTSS","fixed":["1.2.1-4.2.3"],"introduced":["0"],"last_affected":[],"package":"libunwind","purl":"pkg:rpm/suse/libunwind\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS","source":"SUSE-SU-2020:3264-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15-LTSS","fixed":["4.2.3-3.15.4"],"introduced":["0"],"last_affected":[],"package":"zeromq","purl":"pkg:rpm/suse/zeromq\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS","source":"SUSE-SU-2020:3264-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15","fixed":["1.2.1-4.2.3"],"introduced":["0"],"last_affected":[],"package":"libunwind","purl":"pkg:rpm/suse/libunwind\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015","source":"SUSE-SU-2020:3264-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15","fixed":["4.2.3-3.15.4"],"introduced":["0"],"last_affected":[],"package":"zeromq","purl":"pkg:rpm/suse/zeromq\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015","source":"SUSE-SU-2020:3264-1"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["1.2.1-lp151.4.3.1"],"introduced":["0"],"last_affected":[],"package":"libunwind","purl":"pkg:rpm/opensuse/libunwind\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2020:1907-1"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["4.2.3-lp151.5.6.1"],"introduced":["0"],"last_affected":[],"package":"zeromq","purl":"pkg:rpm/opensuse/zeromq\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2020:1907-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["1.2.1-lp152.5.3.1"],"introduced":["0"],"last_affected":[],"package":"libunwind","purl":"pkg:rpm/opensuse/libunwind\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2020:1910-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["4.2.3-lp152.7.3.1"],"introduced":["0"],"last_affected":[],"package":"zeromq","purl":"pkg:rpm/opensuse/zeromq\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2020:1910-1"}],"prev":{"headline":"Potentially tampered sources on Play Store for Chameleon Mini Live Debugger","id":"CVE-2020-15165"},"products":["libzmq"],"published":"2020-09-11","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["zeromq"]},"summary":"Attackers can cause a denial of service in ZeroMQ by preventing legitimate clients from exchanging messages via TCP endpoints.","url":"https://insights.sbomify.com/CVE-2020-15166/"}