{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-22T10:25:14.224","vulnerabilities":[{"cve":{"id":"CVE-2023-27601","sourceIdentifier":"security-advisories@github.com","published":"2023-03-15T22:15:10.357","lastModified":"2024-11-21T07:53:14.323","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Prior to versions 3.1.7 and 3.2.4, OpenSIPS crashes when a malformed SDP body is received and is processed by the `delete_sdp_line` function in the sipmsgops module. This issue can be reproduced by calling the function with an SDP body that does not terminate by a line feed (i.e. `\\n`).\n\nThe vulnerability was found while performing black-box fuzzing against an OpenSIPS server running a configuration that made use of the functions `codec_delete_except_re` and `codec_delete_re`. The same issue was also discovered while performing coverage guided fuzzing on the function `codec_delete_except_re`. The crash happens because the function `delete_sdp_line` expects that an SDP line is terminated by a line feed (`\\n`):\n\nBy abusing this vulnerability, an attacker is able to crash the server. It affects configurations containing functions that rely on the affected code, such as the function `codec_delete_except_re`. Due to the sanity check that is performed in the `del_lump` function, exploitation of this issue will generate an `abort` in the lumps processing function, resulting in a Denial of Service. This issue has been fixed in versions 3.1.7 and 3.2.4."}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-20"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-noinfo"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:opensips:opensips:*:*:*:*:*:*:*:*","versionEndExcluding":"3.1.7","matchCriteriaId":"8EF642AA-D786-40DF-801D-515888AF89BE"},{"vulnerable":true,"criteria":"cpe:2.3:a:opensips:opensips:*:*:*:*:*:*:*:*","versionStartIncluding":"3.2.0","versionEndExcluding":"3.2.4","matchCriteriaId":"34713A76-CAED-43CF-A77C-73F1C36208AA"}]}]}],"references":[{"url":"https://github.com/OpenSIPS/opensips/commit/8f87c7c03da55f9c79bd92e67fa2c94b2a7ce5cf","source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/OpenSIPS/opensips/security/advisories/GHSA-xj5x-g52f-548h","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://opensips.org/docs/modules/3.3.x/sipmsgops.html","source":"security-advisories@github.com","tags":["Vendor Advisory"]},{"url":"https://opensips.org/pub/audit-2022/opensips-audit-technical-report-full.pdf","source":"security-advisories@github.com","tags":["Vendor Advisory"]},{"url":"https://github.com/OpenSIPS/opensips/commit/8f87c7c03da55f9c79bd92e67fa2c94b2a7ce5cf","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/OpenSIPS/opensips/security/advisories/GHSA-xj5x-g52f-548h","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://opensips.org/docs/modules/3.3.x/sipmsgops.html","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"https://opensips.org/pub/audit-2022/opensips-audit-technical-report-full.pdf","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}