Vulnerability Description
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. FreeSWITCH prior to version 1.10.7 is susceptible to Denial of Service via SIP flooding. When flooding FreeSWITCH with SIP messages, it was observed that after a number of seconds the process was killed by the operating system due to memory exhaustion. By abusing this vulnerability, an attacker is able to crash any FreeSWITCH instance by flooding it with SIP messages, leading to Denial of Service. The attack does not require authentication and can be carried out over UDP, TCP or TLS. This issue was patched in version 1.10.7.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Freeswitch | Freeswitch | < 1.10.7 |
Related Weaknesses (CWE)
References
- https://github.com/signalwire/freeswitch/releases/tag/v1.10.7Release NotesThird Party Advisory
- https://github.com/signalwire/freeswitch/security/advisories/GHSA-jvpq-23v4-gp3mExploitThird Party Advisory
- https://github.com/signalwire/freeswitch/releases/tag/v1.10.7Release NotesThird Party Advisory
- https://github.com/signalwire/freeswitch/security/advisories/GHSA-jvpq-23v4-gp3mExploitThird Party Advisory
FAQ
What is CVE-2021-41145?
CVE-2021-41145 is a vulnerability with a CVSS score of 8.6 (HIGH). 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. FreeSWITCH prior ...
How severe is CVE-2021-41145?
CVE-2021-41145 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-41145?
Check the references section above for vendor advisories and patch information. Affected products include: Freeswitch Freeswitch.