CVE-2023-42114

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-42114
Exim NTLM Challenge Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of NTLM challenge requests. 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 data structure. An attacker can leverage this vulnerability to disclose information in the context of the service account. . Was ZDI-CAN-17433.

5.3 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

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-23-1468/ Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-1468/ Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*
History

07 Aug 2025, 17:33

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 3.7 		v2 : unknown
v3 : 5.3
CPE cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*
First Time Exim
Exim exim
References () https://www.zerodayinitiative.com/advisories/ZDI-23-1468/ - () https://www.zerodayinitiative.com/advisories/ZDI-23-1468/ - Third Party Advisory

21 Nov 2024, 08:22

Type Values Removed Values Added
References () https://www.zerodayinitiative.com/advisories/ZDI-23-1468/ - () https://www.zerodayinitiative.com/advisories/ZDI-23-1468/ -

18 Sep 2024, 19:15

Type Values Removed Values Added
Summary
  • (es) Vulnerabilidad de divulgación de información de lectura fuera de los límites del desafío Exim NTLM. Esta vulnerabilidad permite a atacantes remotos revelar información confidencial sobre las instalaciones afectadas de Exim. No se requiere autenticación para aprovechar esta vulnerabilidad. La falla específica existe en el manejo de solicitudes de desafío NTLM. 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 una estructura de datos asignada. Un atacante puede aprovechar esta vulnerabilidad para revelar información en el contexto de la cuenta de servicio. Era ZDI-CAN-17433.
Summary (en) Exim NTLM Challenge Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of NTLM challenge requests. 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 data structure. An attacker can leverage this vulnerability to disclose information in the context of the service account. Was ZDI-CAN-17433. (en) Exim NTLM Challenge Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of NTLM challenge requests. 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 data structure. An attacker can leverage this vulnerability to disclose information in the context of the service account. . Was ZDI-CAN-17433.

03 May 2024, 03:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-03 03:15

Updated : 2025-08-07 17:33

NVD link : CVE-2023-42114

Mitre link : CVE-2023-42114

CVE.ORG link : CVE-2023-42114

JSON object : View

Products Affected

exim

  • exim
CWE
CWE-125

Out-of-bounds Read