7.5
HIGH
CVE-2023-40019
FreeSWITCH Denial of Serviceinteger Overflow 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. Prior to version 1.10.10, FreeSWITCH allows authorized users to cause a denial of service attack by sending re-INVITE with SDP containing duplicate codec names. When a call in FreeSWITCH completes codec negotiation, the `codec_string` channel variable is set with the result of the negotiation. On a subsequent re-negotiation, if an SDP is offered that contains codecs with the same names but with different formats, there may be too many codec matches detected by FreeSWITCH leading to overflows of its internal arrays. By abusing this vulnerability, an attacker is able to corrupt stack of FreeSWITCH leading to an undefined behavior of the system or simply crash it. Version 1.10.10 contains a patch for this issue.

INFO

Published Date :

Sept. 15, 2023, 8:15 p.m.

Last Modified :

Sept. 21, 2023, 6:04 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-40019 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Freeswitch freeswitch
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-40019.

URL Resource
https://github.com/signalwire/freeswitch/releases/tag/v1.10.10 Release Notes
https://github.com/signalwire/freeswitch/security/advisories/GHSA-gjj5-79p2-9g3q Exploit Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-40019 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-40019 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Sep. 21, 2023

    Action Type Old Value New Value
    Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Initial Analysis by [email protected]

    Sep. 21, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://github.com/signalwire/freeswitch/releases/tag/v1.10.10 No Types Assigned https://github.com/signalwire/freeswitch/releases/tag/v1.10.10 Release Notes
    Changed Reference Type https://github.com/signalwire/freeswitch/security/advisories/GHSA-gjj5-79p2-9g3q No Types Assigned https://github.com/signalwire/freeswitch/security/advisories/GHSA-gjj5-79p2-9g3q Exploit, Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:a:freeswitch:freeswitch:*:*:*:*:*:*:*:* versions up to (excluding) 1.10.10
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-40019 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.07 }} 0.02%

score

0.31350

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability