{"affected":[{"affectedData":[{"collectionURL":"https://github.com/daurnimator/lua-http","defaultStatus":"unaffected","product":"lua-http","vendor":"Daurnimator","versions":[{"lessThan":"commit ddab283","status":"affected","version":"0","versionType":"git"}]}],"source":"cvd@cert.pl"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:daurnimator:lua-http:0.4:*:*:*:*:lua:*:*","matchCriteriaId":"D337EBD6-A704-44C0-8533-1EA9B5366780","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"Improper Handling of Exceptional Conditions vulnerability in Daurnimator lua-http library allows Excessive Allocation and a denial of service (DoS) attack to be executed by sending a properly crafted request to the server. \nSuch a request causes the program to enter an infinite loop. \n\nThis issue affects lua-http: all versions before commit ddab283."},{"lang":"es","value":"Una vulnerabilidad de Manejo Inadecuado de Condiciones Excepcionales en la librería lua-http de Daurnimator permite la asignación excesiva y la ejecución de un ataque de Denegación de Servicio (DoS)  mediante el envío de una petición correctamente manipulada al servidor. Este problema afecta a lua-http: todas las versiones anteriores al commit ddab283. "}],"id":"CVE-2023-4540","lastModified":"2026-06-17T06:38:02.853","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"exploitabilityScore":3.9,"impactScore":3.6,"source":"nvd@nist.gov","type":"Primary"},{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"exploitabilityScore":3.9,"impactScore":3.6,"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2023-4540","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2024-09-30T15:48:52.303748Z","version":"2.0.3"}}]},"published":"2023-09-05T08:15:40.017","references":[{"source":"cvd@cert.pl","url":"https://cert.pl/en/posts/2023/09/CVE-2023-4540/"},{"source":"cvd@cert.pl","tags":["Patch","Third Party Advisory"],"url":"https://cert.pl/posts/2023/09/CVE-2023-4540/"},{"source":"cvd@cert.pl","tags":["Patch"],"url":"https://github.com/daurnimator/lua-http/commit/ddab2835c583d45dec62680ca8d3cbde55e0bae6"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"],"url":"https://cert.pl/posts/2023/09/CVE-2023-4540/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"url":"https://github.com/daurnimator/lua-http/commit/ddab2835c583d45dec62680ca8d3cbde55e0bae6"},{"source":"af854a3a-2127-422b-91ae-364da2661108","url":"https://https://cert.pl/en/posts/2023/09/CVE-2023-4540/"}],"sourceIdentifier":"cvd@cert.pl","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-755"}],"source":"cvd@cert.pl","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-755"}],"source":"nvd@nist.gov","type":"Primary"}]}