Sofia-SIP is an open-source Session Initiation Protocol (SIP) User-Agent library. Prior to version 1.13.8, an attacker can send a message with evil sdp to FreeSWITCH, which may cause a crash. This type of crash may be caused by a URL ending with `%`. Version 1.13.8 contains a patch for this issue.
https://www.debian.org/security/2023/dsa-5410
https://security.gentoo.org/glsa/202210-18
https://lists.debian.org/debian-lts-announce/2022/09/msg00001.html
https://github.com/freeswitch/sofia-sip/security/advisories/GHSA-g3x6-p824-x6hm
https://github.com/freeswitch/sofia-sip/commit/51841eb53679434a386fb2dcbca925dcc48d58ba