Unknown · Kamailio Sip · CVE-2020-27507
**Name of the Vulnerable Software and Affected Versions**
Kamailio SIP versions prior to 5.5.0
**Description**
The issue is related to the mishandling of INVITE requests with duplicated fields and overlength tags by the Kamailio SIP server, leading to a buffer overflow. This can cause the server to crash or potentially have other unspecified impacts.
**Recommendations**
For versions prior to 5.5.0, update to version 5.5.0 or later to resolve the issue. As a temporary workaround, consider restricting access to INVITE requests with duplicated fields and overlength tags until a patch is applied.