CVE-2023-42119
low-risk
Published 2024-05-03
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.
Do I need to act?
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0.73% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.1/10
Low
ADJACENT_NETWORK
/ HIGH complexity
Affected Products (1)
Affected Vendors
References (3)
15
/ 100
low-risk
Severity
8/34 · Low
Exploitability
2/34 · Minimal
Exposure
5/34 · Minimal