Multiple security issues were discovered in Sofia-SIP, a SIP User-Agent library, which could result in denial of service.
For the stable distribution (bullseye), these problems have been fixed in version 1.12.11+20110422.1-2.1+deb11u1.
We recommend that you upgrade your sofia-sip packages.
For the detailed security status of sofia-sip please refer to its security tracker page at: \ https://security-tracker.debian.org/tracker/sofia-sip