CVE-2021-41145

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

7.5 /10

CVSS v3 : 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

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

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

Configuration 1 (hide)

cpe:2.3:a:freeswitch:freeswitch:*:*:*:*:*:*:*:*
History

12 Aug 2022, 14:47

Type Values Removed Values Added
CWE CWE-400 CWE-401

17 Nov 2021, 03:30

Type Values Removed Values Added
References
  • {'url': 'http://seclists.org/fulldisclosure/2021/Oct/42', 'name': '20211026 [ES2021-06] FreeSWITCH susceptible to Denial of Service via SIP flooding', 'tags': ['Exploit', 'Mailing List', 'Third Party Advisory'], 'refsource': 'FULLDISC'}
Summary 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. 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.

28 Oct 2021, 19:32

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 8.6 		v2 : 5.0
v3 : 7.5
CPE cpe:2.3:a:freeswitch:freeswitch:*:*:*:*:*:*:*:*
References (CONFIRM) https://github.com/signalwire/freeswitch/security/advisories/GHSA-jvpq-23v4-gp3m - (CONFIRM) https://github.com/signalwire/freeswitch/security/advisories/GHSA-jvpq-23v4-gp3m - Exploit, Third Party Advisory
References (FULLDISC) http://seclists.org/fulldisclosure/2021/Oct/42 - (FULLDISC) http://seclists.org/fulldisclosure/2021/Oct/42 - Exploit, Mailing List, Third Party Advisory
References (MISC) https://github.com/signalwire/freeswitch/releases/tag/v1.10.7 - (MISC) https://github.com/signalwire/freeswitch/releases/tag/v1.10.7 - Release Notes, Third Party Advisory

26 Oct 2021, 17:15

Type Values Removed Values Added
References
  • (FULLDISC) http://seclists.org/fulldisclosure/2021/Oct/42 -

25 Oct 2021, 22:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-10-25 22:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-41145

Mitre link : CVE-2021-41145

CVE.ORG link : CVE-2021-41145

JSON object : View

Products Affected

freeswitch

  • freeswitch
CWE
CWE-401

Missing Release of Memory after Effective Lifetime

CWE-400

Uncontrolled Resource Consumption