CVE-2023-40019

Summary

CVE-2023-40019 is a denial-of-service vulnerability affecting FreeSWITCH, an open-source Software Defined Telecom Stack. Prior to version 1.10.10, FreeSWITCH fails to adequately handle SDP with duplicate codec names during re-negotiation. This can cause an overflow in FreeSWITCH's internal arrays, resulting in undefined behavior or crashes. An attacker can exploit this vulnerability by sending a re-INVITE message with an SDP containing duplicate codec names. The patch for this issue is available in version 1.10.10.

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