CVE-2023-37457
Asterisk's PJSIP_HEADER dialplan function can overwrite memory/cause crash when using 'update'
Severity Score
8.2
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk versions 18.20.0 and prior, 20.5.0 and prior, and 21.0.0; as well as ceritifed-asterisk 18.9-cert5 and prior, the 'update' functionality of the PJSIP_HEADER dialplan function can exceed the available buffer space for storing the new value of a header. By doing so this can overwrite memory or cause a crash. This is not externally exploitable, unless dialplan is explicitly written to update a header based on data from an outside source. If the 'update' functionality is not used the vulnerability does not occur. A patch is available at commit a1ca0268254374b515fa5992f01340f7717113fa.
Asterisk es un conjunto de herramientas de telefonía y centralita privada de código abierto. En las versiones de Asterisk 18.20.0 y anteriores, 20.5.0 y anteriores y 21.0.0; así como ceritifed-asterisk 18.9-cert5 y anteriores, la funcionalidad de 'actualización' de la función de dialplan PJSIP_HEADER puede exceder el espacio de búfer disponible para almacenar el nuevo valor de un encabezado. Al hacerlo, esto puede sobrescribir la memoria o provocar un bloqueo. Esto no se puede explotar externamente, a menos que el dialplan esté escrito explícitamente para actualizar un encabezado en función de datos de una fuente externa. Si no se utiliza la funcionalidad de 'actualización', la vulnerabilidad no se produce. Hay un parche disponible en el commit a1ca0268254374b515fa5992f01340f7717113fa.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-07-06 CVE Reserved
- 2023-12-14 CVE Published
- 2023-12-29 EPSS Updated
- 2024-08-02 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC
References (3)
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/asterisk/asterisk/commit/a1ca0268254374b515fa5992f01340f7717113fa | 2023-12-29 |
| URL | Date | SRC |
|---|---|---|
| https://github.com/asterisk/asterisk/security/advisories/GHSA-98rc-4j27-74hh | 2023-12-29 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Digium Search vendor "Digium" | Asterisk Search vendor "Digium" for product "Asterisk" | <= 18.20.0 Search vendor "Digium" for product "Asterisk" and version " <= 18.20.0" | - |
Affected
| ||||||
| Digium Search vendor "Digium" | Asterisk Search vendor "Digium" for product "Asterisk" | >= 19.0.0 <= 20.5.0 Search vendor "Digium" for product "Asterisk" and version " >= 19.0.0 <= 20.5.0" | - |
Affected
| ||||||
| Digium Search vendor "Digium" | Asterisk Search vendor "Digium" for product "Asterisk" | 21.0.0 Search vendor "Digium" for product "Asterisk" and version "21.0.0" | - |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 13.13.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "13.13.0" | - |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 13.13.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "13.13.0" | cert1 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 13.13.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "13.13.0" | cert1-rc1 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 13.13.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "13.13.0" | cert1-rc2 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 13.13.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "13.13.0" | cert1-rc3 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 13.13.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "13.13.0" | cert1-rc4 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 13.13.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "13.13.0" | cert2 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 13.13.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "13.13.0" | cert3 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 13.13.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "13.13.0" | rc1 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 13.13.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "13.13.0" | rc2 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 16.8.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "16.8.0" | - |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 16.8.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "16.8.0" | cert1 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 16.8.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "16.8.0" | cert10 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 16.8.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "16.8.0" | cert11 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 16.8.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "16.8.0" | cert12 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 16.8.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "16.8.0" | cert2 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 16.8.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "16.8.0" | cert3 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 16.8.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "16.8.0" | cert4 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 16.8.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "16.8.0" | cert5 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 16.8.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "16.8.0" | cert6 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 16.8.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "16.8.0" | cert7 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 16.8.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "16.8.0" | cert8 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 16.8.0 Search vendor "Sangoma" for product "Certified Asterisk" and version "16.8.0" | cert9 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 18.9 Search vendor "Sangoma" for product "Certified Asterisk" and version "18.9" | cert1 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 18.9 Search vendor "Sangoma" for product "Certified Asterisk" and version "18.9" | cert2 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 18.9 Search vendor "Sangoma" for product "Certified Asterisk" and version "18.9" | cert3 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 18.9 Search vendor "Sangoma" for product "Certified Asterisk" and version "18.9" | cert4 |
Affected
| ||||||
| Sangoma Search vendor "Sangoma" | Certified Asterisk Search vendor "Sangoma" for product "Certified Asterisk" | 18.9 Search vendor "Sangoma" for product "Certified Asterisk" and version "18.9" | cert5 |
Affected
| ||||||