CVE-2023-27596 Information

Description

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.

Reference

https://github.com/OpenSIPS/opensips/security/advisories/GHSA-3ghx-j39m-cw4f https://github.com/OpenSIPS/opensips/commit/dd051f8ed5ae3347fb1d556ced3c97822c9d8450