{"id":"CVE-2023-28320","state":"PUBLISHED","title":"A denial of service vulnerability exists in curl <v8.1.0 in the way libcurl provides several different backends for resolving host names, selected at build time. If it is built to ","description":"A denial of service vulnerability exists in curl <v8.1.0 in the way libcurl provides several different backends for resolving host names, selected at build time. If it is built to use the synchronous resolver, it allows name resolves to time-out slow operations using `alarm()` and `siglongjmp()`. When doing this, libcurl used a global buffer that was not mutex protected and a multi-threaded application might therefore crash or otherwise misbehave.","publishedAt":"2023-05-26T00:00:00.000Z","updatedAt":"2025-01-15T15:59:07.016Z","severity":{"score":5.9,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"hackerone","products":["n/a https://github.com/curl/curl"],"affected":[{"vendor":"n/a","product":"https://github.com/curl/curl","versions":[{"version":"Fixed in 8.1.0","status":"affected"}]}],"references":["https://hackerone.com/reports/1929597","https://security.netapp.com/advisory/ntap-20230609-0009/","https://support.apple.com/kb/HT213843","https://support.apple.com/kb/HT213844","https://support.apple.com/kb/HT213845","http://seclists.org/fulldisclosure/2023/Jul/52","http://seclists.org/fulldisclosure/2023/Jul/48","http://seclists.org/fulldisclosure/2023/Jul/47","https://security.gentoo.org/glsa/202310-12"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T20:05:52.290Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/28xxx/CVE-2023-28320.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-28320","state":"PUBLISHED","datePublished":"2023-05-26T00:00:00.000Z","dateUpdated":"2025-01-15T15:59:07.016Z","assignerShortName":"hackerone","assignerOrgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","dateReserved":"2023-03-14T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A denial of service vulnerability exists in curl <v8.1.0 in the way libcurl provides several different backends for resolving host names, selected at build time. If it is built to use the synchronous resolver, it allows name resolves to time-out slow operations using `alarm()` and `siglongjmp()`. When doing this, libcurl used a global buffer that was not mutex protected and a multi-threaded application might therefore crash or otherwise misbehave."}],"affected":[{"vendor":"n/a","product":"https://github.com/curl/curl","versions":[{"version":"Fixed in 8.1.0","status":"affected"}]}],"references":[{"url":"https://hackerone.com/reports/1929597"},{"url":"https://security.netapp.com/advisory/ntap-20230609-0009/"},{"url":"https://support.apple.com/kb/HT213843"},{"url":"https://support.apple.com/kb/HT213844"},{"url":"https://support.apple.com/kb/HT213845"},{"url":"http://seclists.org/fulldisclosure/2023/Jul/52","name":"20230725 APPLE-SA-2023-07-24-6 macOS Big Sur 11.7.9","tags":["mailing-list"]},{"url":"http://seclists.org/fulldisclosure/2023/Jul/48","name":"20230725 APPLE-SA-2023-07-24-5 macOS Monterey 12.6.8","tags":["mailing-list"]},{"url":"http://seclists.org/fulldisclosure/2023/Jul/47","name":"20230725 APPLE-SA-2023-07-24-4 macOS Ventura 13.5","tags":["mailing-list"]},{"url":"https://security.gentoo.org/glsa/202310-12","name":"GLSA-202310-12","tags":["vendor-advisory"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","type":"CWE","lang":"en","description":"Denial of Service (CWE-400)"}]}],"providerMetadata":{"shortName":"hackerone","orgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","dateUpdated":"2023-10-11T10:06:23.211Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://hackerone.com/reports/1929597","tags":["x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20230609-0009/","tags":["x_transferred"]},{"url":"https://support.apple.com/kb/HT213843","tags":["x_transferred"]},{"url":"https://support.apple.com/kb/HT213844","tags":["x_transferred"]},{"url":"https://support.apple.com/kb/HT213845","tags":["x_transferred"]},{"url":"http://seclists.org/fulldisclosure/2023/Jul/52","name":"20230725 APPLE-SA-2023-07-24-6 macOS Big Sur 11.7.9","tags":["mailing-list","x_transferred"]},{"url":"http://seclists.org/fulldisclosure/2023/Jul/48","name":"20230725 APPLE-SA-2023-07-24-5 macOS Monterey 12.6.8","tags":["mailing-list","x_transferred"]},{"url":"http://seclists.org/fulldisclosure/2023/Jul/47","name":"20230725 APPLE-SA-2023-07-24-4 macOS Ventura 13.5","tags":["mailing-list","x_transferred"]},{"url":"https://security.gentoo.org/glsa/202310-12","name":"GLSA-202310-12","tags":["vendor-advisory","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T12:38:24.752Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.9,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-01-15T15:57:47.806370Z","id":"CVE-2023-28320","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-01-15T15:59:07.016Z"}}]}}}