CVE-2023-42119: (0Day) Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability
[Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability]
Other sources
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.
— MITRE
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2023-42119.
What is the severity of CVE-2023-42119?
The severity of CVE-2023-42119 is low, with a severity value of 3.1.
How does CVE-2023-42119 affect Exim installations?
CVE-2023-42119 allows network-adjacent attackers to disclose sensitive information on affected installations of Exim.
Do I need to authenticate to exploit CVE-2023-42119?
No, authentication is not required to exploit CVE-2023-42119.
What is the recommended remedy for CVE-2023-42119?
The recommended remedy for CVE-2023-42119 is to update Exim to version 4.96.2 or apply the respective patches provided by the vendor.