Rapid7

vulnerability

Alpine Linux: CVE-2023-42116: Stack-based Buffer Overflow

Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
May 3, 2024
Added
Aug 22, 2024
Modified
Mar 25, 2026

Description

Exim SMTP Challenge Stack-based Buffer Overflow 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 handling of NTLM challenge requests. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account.
. Was ZDI-CAN-17515.

Solution

alpine-linux-upgrade-exim
Title
Rapid7 Labs

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