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VULNERABILITIES

CVE-2021-41145 Details

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.

Metrics

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/signalwire/freeswitch/releases/tag/v1.10.7 CVERelease NotesThird Party Advisory
https://github.com/signalwire/freeswitch/security/advisories/GHSA-jvpq-23v4-gp3m CVEExploitThird Party Advisory
https://github.com/signalwire/freeswitch/releases/tag/v1.10.7 [email protected]Release NotesThird Party Advisory
https://github.com/signalwire/freeswitch/security/advisories/GHSA-jvpq-23v4-gp3m [email protected]ExploitThird Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-401Missing Release of Memory after Effective Lifetime[email protected]
CWE-400Uncontrolled Resource Consumption[email protected]

Affected Products

ProductVersions
freeswitch freeswitch
< 1.10.7

CPE

  • cpe:2.3:a:freeswitch:freeswitch:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

8 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-41145
NVD Published Date:
Oct 25, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-41145 Details - Not Deferred