CVE-2023-42119

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-42119
Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the smtp service, which listens on TCP port 25 by default. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the service account. . Was ZDI-CAN-17643.

3.1 /10

CVSS v3 : LOW

V3 Legend

Vector : AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploitability : 1.6 / Impact : 1.4

Attack Vector ADJACENT_NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://www.zerodayinitiative.com/advisories/ZDI-23-1473/
https://www.zerodayinitiative.com/advisories/ZDI-23-1473/
Configurations

No configuration.

History

21 Nov 2024, 08:22

Type Values Removed Values Added
References () https://www.zerodayinitiative.com/advisories/ZDI-23-1473/ - () https://www.zerodayinitiative.com/advisories/ZDI-23-1473/ -

18 Sep 2024, 19:15

Type Values Removed Values Added
Summary
  • (es) Vulnerabilidad de divulgación de información de lectura fuera de los límites de Exim dnsdb. Esta vulnerabilidad permite a atacantes adyacentes a la red revelar información confidencial sobre las instalaciones afectadas de Exim. No se requiere autenticación para aprovechar esta vulnerabilidad. La falla específica existe dentro del servicio smtp, que escucha en el puerto TCP 25 de forma predeterminada. El problema se debe a la falta de una validación adecuada de los datos proporcionados por el usuario, lo que puede provocar una lectura más allá del final de un búfer asignado. Un atacante puede aprovechar esto junto con otras vulnerabilidades para ejecutar código arbitrario en el contexto de la cuenta de servicio. Era ZDI-CAN-17643.
Summary (en) Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the smtp service, which listens on TCP port 25 by default. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the service account. Was ZDI-CAN-17643. (en) Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the smtp service, which listens on TCP port 25 by default. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the service account. . Was ZDI-CAN-17643.

03 May 2024, 03:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-03 03:15

Updated : 2024-11-21 08:22

NVD link : CVE-2023-42119

Mitre link : CVE-2023-42119

CVE.ORG link : CVE-2023-42119

JSON object : View

Products Affected

No product.

CWE
CWE-125

Out-of-bounds Read