CVE-2023-28095 Information

Description

OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Versions prior to 3.1.7 and 3.2.4 have a potential issue in msg_translator.c:2628 which might lead to a server crash. This issue was found while fuzzing the function build_res_buf_from_sip_req but could not be reproduced against a running instance of OpenSIPS. This issue could not be exploited against a running instance of OpenSIPS since no public function was found to make use of this vulnerable code. Even in the case of exploitation through unknown vectors it is highly unlikely that this issue would lead to anything other than Denial of Service. This issue has been fixed in versions 3.1.7 and 3.2.4.

Reference

https://github.com/OpenSIPS/opensips/commit/9cf3dd3398719dd91207495f76d7726701c5145c https://github.com/OpenSIPS/opensips/security/advisories/GHSA-7pf3-24qg-8v9h https://opensips.org/pub/audit-2022/opensips-audit-technical-report-full.pdf