ALT-PU-2024-1184

CVE-2023-51443

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.10.11, when handling DTLS-SRTP for media setup, FreeSWITCH is susceptible to Denial of Service due to a race condition in the hello handshake phase of the DTLS protocol. This attack can be done continuously, thus denying new DTLS-SRTP encrypted calls during the attack. If an attacker manages to send a ClientHello DTLS message with an invalid CipherSuite (such as `TLS_NULL_WITH_NULL_NULL`) to the port on the FreeSWITCH server that is expecting packets from the caller, a DTLS error is generated. This results in the media session being torn down, which is followed by teardown at signaling (SIP) level too. Abuse of this vulnerability may lead to a massive Denial of Service on vulnerable FreeSWITCH servers for calls that rely on DTLS-SRTP. To address this vulnerability, upgrade FreeSWITCH to

CVE-2023-51443

FreeSWITCH is a Software Defined Telecom Stack enabling the digital tr ...

BDU:2024-01229

Уязвимость программно-определяемого телекоммуникационного стека FreeSWITCH, связанная с некорректной обработкой исключительных состояний, позволяющая нарушителю вызвать отказ в обслуживании

ALT-PU-2024-1178

ALT-PU-2024-1178: package `freeswitch` update to version 1.10.11-alt1