Homepage
About Snyk

CVE-2023-42116 Affecting exim4 package, versions <4.92-8+deb10u8

low

Snyk CVSS

      Threat Intelligence

      EPSS 0.07% (29th percentile)

    Do your applications use this vulnerable package?

    In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

    Test your applications
    • Snyk ID SNYK-DEBIAN10-EXIM4-5923380
    • published 28 Sep 2023
    • disclosed 3 May 2024
    Report a new vulnerability Found a mistake?

    Introduced: 28 Sep 2023

    CVE-2023-42116 Open this link in a new tab

    How to fix?

    Upgrade Debian:10 exim4 to version 4.92-8+deb10u8 or higher.

    NVD Description

    Note: Versions mentioned in the description apply only to the upstream exim4 package and not the exim4 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

    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.