CVE Vulnerability

CVE-2021-41145

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/signalwire/freeswitch/security/advisories/GHSA-jvpq-23v4-gp3m Exploit Third Party Advisory
https://github.com/signalwire/freeswitch/releases/tag/v1.10.7 Release Notes Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:freeswitch:freeswitch:*:*:*:*:*:*:*:*
Information

Published : 2021-10-25 10:15

Updated : 2022-08-12 02:47

NVD link : CVE-2021-41145

Mitre link : CVE-2021-41145

Products Affected
No products.
CWE
CWE-401