CVE-2021-41145

CVSS V2 Medium 5 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2021-41145
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-10-25T22:15:07
  • Last Modified Date
  • 2022-08-12T14:47:46
Weakness Enumerations
CWE URL
CWE-401 http://cwe.mitre.org/data/definitions/401.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:freeswitch:freeswitch:*:*:*:*:*:*:*:* 1 OR 1.10.7
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-41145
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41145
History
Created Old Value New Value Data Type Notes
2022-05-10 06:46:37 Added to TrackCVE
2022-12-05 13:15:09 2021-10-25T22:15Z 2021-10-25T22:15:07 CVE Published Date updated
2022-12-05 13:15:09 2022-08-12T14:47:46 CVE Modified Date updated
2022-12-05 13:15:09 Analyzed Vulnerability Status updated