{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-5591 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-5591 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-5591 is a high-severity denial of service vulnerability in XACK, Inc. XACK DNS, published on 5 Jun 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-2020-5591 and fix it if it is affected.\n\nWhat it is: CVE-2020-5591 is a high-severity denial of service vulnerability in XACK, Inc. XACK DNS, published on 5 Jun 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-2020-5591 in the wild and no public exploit code.\n\nAffected product: XACK, Inc. XACK DNS. 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-2020-5591/ (Markdown: https://insights.sbomify.com/CVE-2020-5591/index.md)","id":"CVE-2020-5591","markdown":"https://insights.sbomify.com/CVE-2020-5591/index.md","name":"CVE-2020-5591","record":{"aliases":["GHSA-rgx8-jrmw-j2jr"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"DNS resolver software","requires_auth":"none","summary":"Remote attackers can cause denial of service or use the resolver for reflection attacks, affecting XACK DNS users.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"xack_dns","vendor":"xack"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","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":"XACK DNS 1.11.0 to 1.11.4, 1.10.0 to 1.10.8, 1.8.0 to 1.8.23, 1.7.0 to 1.7.18, and versions before 1.7.0 allow remote attackers to cause a denial of service condition resulting in degradation of the recursive resolver's performance or compromising the recursive resolver as a reflector in a reflection attack.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Denial of service in XACK DNS","id":"CVE-2020-5591","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Cross-site scripting in Zenphoto","id":"CVE-2020-5592"},"packages":[],"prev":{"headline":"EC-CUBE Directory traversal vulnerability","id":"CVE-2020-5590"},"products":["XACK DNS"],"published":"2020-06-05","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":["XACK, Inc."]},"summary":"Remote attackers can cause denial of service or use the resolver for reflection attacks, affecting XACK DNS users.","url":"https://insights.sbomify.com/CVE-2020-5591/"}