CVE-2023-42115: (0Day) Exim AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability
[Exim AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability]
Other sources
Exim AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code 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 write past the end of a buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. . Was ZDI-CAN-17434.
— NVD
Affected Software
Event History
Frequently Asked Questions
What is CVE-2023-42115?
CVE-2023-42115 is an (0Day) Exim AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability.
How does CVE-2023-42115 affect Exim?
CVE-2023-42115 allows remote attackers to execute arbitrary code on affected installations of Exim.
Is authentication required to exploit CVE-2023-42115?
No, authentication is not required to exploit CVE-2023-42115.
What is the severity of CVE-2023-42115?
CVE-2023-42115 has a severity value of 9.8, which is critical.
How can I fix CVE-2023-42115 on Ubuntu?
To fix CVE-2023-42115 on Ubuntu, update the Exim4 package to version 4.93-13ubuntu1.8, 4.95-4ubuntu2.3, 4.96-14ubuntu1.2, or 4.96.1 depending on the specific Ubuntu release.