{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-30193 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2025-30193 is a high-severity denial of service vulnerability in PowerDNS DNSdist, published on 20 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-30193 and fix it if it is affected.\n\nWhat it is: CVE-2025-30193 is a high-severity denial of service vulnerability in PowerDNS DNSdist, published on 20 May 2025. 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-2025-30193 in the wild and no public exploit code.\n\nAffected product: PowerDNS DNSdist. 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-2025-30193/ (Markdown: https://insights.sbomify.com/CVE-2025-30193/index.md)","id":"CVE-2025-30193","markdown":"https://insights.sbomify.com/CVE-2025-30193/index.md","name":"CVE-2025-30193","record":{"aliases":["DEBIAN-CVE-2025-30193","GHSA-4q3h-v92p-gchj","SUSE-SU-2025:01745-1","SUSE-SU-2025:01792-1","UBUNTU-CVE-2025-30193"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"DNS load balancer","requires_auth":"none","summary":"An attacker can cause a denial of service by exhausting the stack via crafted TCP exchanges when unlimited queries are allowed on a single connection.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"OX","cpe":[],"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-674","name":"Uncontrolled Recursion"}],"description":"In some circumstances, when DNSdist is configured to allow an unlimited number of queries on a single, incoming TCP connection from a client, an attacker can cause a denial of service by crafting a TCP exchange that triggers an exhaustion of the stack and a crash of DNSdist, causing a denial of service.\n\nThe remedy is: upgrade to the patched 1.9.10 version.\n\nA workaround is to restrict the maximum number of queries on incoming TCP connections to a safe value, like 50, via the setMaxTCPQueriesPerConnection setting.\n\nWe would like to thank Renaud Allard for bringing this issue to our attention.","ecosystems":["SUSE:Enterprise Storage 7.1","SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS","SUSE:Linux Enterprise Module for Basesystem 15 SP6","SUSE:Linux Enterprise Server 15 SP3-LTSS","SUSE:Linux Enterprise Server 15 SP4-LTSS","SUSE:Linux Enterprise Server 15 SP5-LTSS","SUSE:Linux Enterprise Server for SAP Applications 15 SP4","SUSE:Linux Enterprise Server for SAP Applications 15 SP5","SUSE:Manager Proxy 4.3","SUSE:Manager Server 4.3","openSUSE:Leap 15.6"],"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 via crafted TCP exchange","id":"CVE-2025-30193","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2025"},"n_packages":14,"n_references":1,"next":{"headline":"Denial of service via crafted DoH exchange","id":"CVE-2025-30194"},"packages":[{"ecosystem":"SUSE:Enterprise Storage 7.1","fixed":["1.8.0-150100.3.8.1"],"introduced":["0"],"last_affected":[],"package":"dnsdist","purl":"pkg:rpm/suse/dnsdist\u0026distro=SUSE%20Enterprise%20Storage%207.1","source":"SUSE-SU-2025:01792-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","fixed":["1.8.0-150400.9.6.1"],"introduced":["0"],"last_affected":[],"package":"dnsdist","purl":"pkg:rpm/suse/dnsdist\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS","source":"SUSE-SU-2025:01745-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","fixed":["1.8.0-150400.9.6.1"],"introduced":["0"],"last_affected":[],"package":"dnsdist","purl":"pkg:rpm/suse/dnsdist\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS","source":"SUSE-SU-2025:01745-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS","fixed":["1.8.0-150400.9.6.1"],"introduced":["0"],"last_affected":[],"package":"dnsdist","purl":"pkg:rpm/suse/dnsdist\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOS","source":"SUSE-SU-2025:01745-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS","fixed":["1.8.0-150400.9.6.1"],"introduced":["0"],"last_affected":[],"package":"dnsdist","purl":"pkg:rpm/suse/dnsdist\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSS","source":"SUSE-SU-2025:01745-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP6","fixed":["1.8.0-150400.9.6.1"],"introduced":["0"],"last_affected":[],"package":"dnsdist","purl":"pkg:rpm/suse/dnsdist\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6","source":"SUSE-SU-2025:01745-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP3-LTSS","fixed":["1.8.0-150100.3.8.1"],"introduced":["0"],"last_affected":[],"package":"dnsdist","purl":"pkg:rpm/suse/dnsdist\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSS","source":"SUSE-SU-2025:01792-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP4-LTSS","fixed":["1.8.0-150400.9.6.1"],"introduced":["0"],"last_affected":[],"package":"dnsdist","purl":"pkg:rpm/suse/dnsdist\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS","source":"SUSE-SU-2025:01745-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP5-LTSS","fixed":["1.8.0-150400.9.6.1"],"introduced":["0"],"last_affected":[],"package":"dnsdist","purl":"pkg:rpm/suse/dnsdist\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSS","source":"SUSE-SU-2025:01745-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP4","fixed":["1.8.0-150400.9.6.1"],"introduced":["0"],"last_affected":[],"package":"dnsdist","purl":"pkg:rpm/suse/dnsdist\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4","source":"SUSE-SU-2025:01745-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP5","fixed":["1.8.0-150400.9.6.1"],"introduced":["0"],"last_affected":[],"package":"dnsdist","purl":"pkg:rpm/suse/dnsdist\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5","source":"SUSE-SU-2025:01745-1"},{"ecosystem":"SUSE:Manager Proxy 4.3","fixed":["1.8.0-150400.9.6.1"],"introduced":["0"],"last_affected":[],"package":"dnsdist","purl":"pkg:rpm/suse/dnsdist\u0026distro=SUSE%20Manager%20Proxy%204.3","source":"SUSE-SU-2025:01745-1"},{"ecosystem":"SUSE:Manager Server 4.3","fixed":["1.8.0-150400.9.6.1"],"introduced":["0"],"last_affected":[],"package":"dnsdist","purl":"pkg:rpm/suse/dnsdist\u0026distro=SUSE%20Manager%20Server%204.3","source":"SUSE-SU-2025:01745-1"},{"ecosystem":"openSUSE:Leap 15.6","fixed":["1.8.0-150400.9.6.1"],"introduced":["0"],"last_affected":[],"package":"dnsdist","purl":"pkg:rpm/opensuse/dnsdist\u0026distro=openSUSE%20Leap%2015.6","source":"SUSE-SU-2025:01745-1"}],"prev":{"headline":"A Recursor configured to send out ECS enabled queries can be sensitive to spoofing attempts","id":"CVE-2025-30192"},"products":["DNSdist"],"published":"2025-05-20","related":[],"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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-05-20","vendors":["PowerDNS"]},"summary":"An attacker can cause a denial of service by exhausting the stack via crafted TCP exchanges when unlimited queries are allowed on a single connection.","url":"https://insights.sbomify.com/CVE-2025-30193/"}