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Vulnerability DatabaseCVE-2024-25768

CVE-2024-25768: 
NixOS vulnerability analysis and mitigation

Overview

OpenDMARC 1.4.2 contains a null pointer dereference vulnerability in the file /OpenDMARC/libopendmarc/opendmarc_policy.c. The vulnerability was discovered and reported on February 26, 2024, and affects the OpenDMARC software package, which is a widely used email authentication tool (NVD, GitHub Report).

Technical details

The vulnerability is classified as a NULL Pointer Dereference (CWE-476) that occurs at line 1480 in opendmarc_policy.c. The issue arises when list_buf is NULL in the if condition at line 1478 and size_of_buf is greater than 0, causing the code to enter a branch where memset is called with a NULL first argument. The vulnerability has been assigned a CVSS v3.1 base score of 7.5 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (NVD, GitHub Report).

Impact

When exploited, this vulnerability can lead to program crashes and potential denial-of-service incidents, affecting the availability of the OpenDMARC service (GitHub Report).

Mitigation and workarounds

A fix has been implemented in version 1.4.2-5 for Debian systems. Users are advised to upgrade to the fixed version where available (Debian Tracker).

Additional resources

Source: This report was generated using AI

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