{"id":"CVE-2023-27596","summary":"OpenSIPS has vulnerability in the codec_delete_XX() functions","details":"OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Prior to versions 3.1.8 and 3.2.5, OpenSIPS crashes when a malformed SDP body is sent multiple times to an OpenSIPS configuration that makes use of the `stream_process` function. This issue was discovered during coverage guided fuzzing of the function `codec_delete_except_re`. By 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`. This issue has been fixed in version 3.1.8 and 3.2.5.","aliases":["GHSA-3ghx-j39m-cw4f"],"modified":"2026-08-12T13:34:05.862866Z","published":"2023-03-15T20:09:14.359Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-770"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27596.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27596.json"},{"type":"ADVISORY","url":"https://github.com/OpenSIPS/opensips/security/advisories/GHSA-3ghx-j39m-cw4f"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27596"},{"type":"FIX","url":"https://github.com/OpenSIPS/opensips/commit/dd051f8ed5ae3347fb1d556ced3c97822c9d8450"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/opensips/opensips","events":[{"introduced":"0"},{"fixed":"aa800179d5691116ccb1dd934cc0a65c7e98c85c"},{"introduced":"1e94abe8837fe3511fada132d67a6385d8d099a2"},{"fixed":"7e284ab03dfcdc45752ebf66fcc430f01ee072b2"},{"fixed":"dd051f8ed5ae3347fb1d556ced3c97822c9d8450"}],"database_specific":{"cpe":"cpe:2.3:a:opensips:opensips:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"3.1.8"},{"introduced":"3.2.0"},{"fixed":"3.2.5"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["3.2.4","3.1.7","3.2.3","3.1.6","3.2.2","3.1.5","3.1.4","3.2.1","3.2.0","3.1.3","3.1.2","3.1.1","3.1.0","3.1.0-beta","2.1-rc1","2.1-alpha3","2.1-alpha2","2.1-alpha1","1.11.0"],"database_specific":{"vanir_signatures_modified":"2026-08-12T13:34:05Z","vanir_signatures":[{"deprecated":false,"digest":{"line_hashes":["269831816298789796622796761134856517880","6078275837674443026022189296598574833","221059386863148230943141755643961143447","260403706925981758466737271790113321016"],"threshold":0.9},"id":"CVE-2023-27596-71671655","signature_type":"Line","signature_version":"v1","source":"https://github.com/opensips/opensips/commit/dd051f8ed5ae3347fb1d556ced3c97822c9d8450","target":{"file":"modules/sipmsgops/codecs.c"}},{"target":{"file":"modules/sipmsgops/codecs.c","function":"stream_process"},"deprecated":false,"digest":{"function_hash":"178041500925847620274392235412126873250","length":6932},"id":"CVE-2023-27596-aa0550bc","signature_type":"Function","signature_version":"v1","source":"https://github.com/opensips/opensips/commit/dd051f8ed5ae3347fb1d556ced3c97822c9d8450"}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-27596.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}