CVE-2023-42114

MEDIUM EPSS 97.9%
Published May 3, 20242y ago · Modified Jun 17, 20262w ago
5.3 CVSS 3.1
Medium
Find Similar
Published May 3, 2024 2y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
97.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 1

VendorProductVersionRange
eximexim* <4.96.1

References 2

  • lists.debian.org https://lists.debian.org/debian-lts-announce/2023/10/msg00002.html
  • zerodayinitiative.com https://www.zerodayinitiative.com/advisories/ZDI-23-1468/
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.