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CVE-2023-42114

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CVE-2023-42114

Published: May 3, 2024

Modified: Nov 4, 2025

PUBLISHED

CVSS v3.0

3.7

LOW

Description

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.

VendorProductVersions

Exim

Exim

affected
exim 4.95

Weaknesses (CWE)

CWE-125

CVSS v3.0 Details

CVSS v3.0 Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

References

ZDI-23-1468
x_research-advisory

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