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A vulnerability involving the message transfer agent Exim ¡ª estimated to ¡ª has been discovered by security researchers from. Exploitation of the bug, assigned , could result in threat actors being able to launch denial-of-service (DoS) or remote code execution (RCE) attacks.

The vulnerability is a result of a heap-based overflow error in string_vformat (string.c). According to , the vulnerability can be exploited by an attacker via an ¡°extraordinary long Extended HELO (EHLO) string¡± meant to crash the process that is responsible for receiving the message. Exim coder Jeremy Harris, who called the vulnerability a ¡°simple coding error¡± that resulted from not growing a string by enough, published a showing an example of how it could be exploited.

Exim also notes that there might be other ways to exploit the vulnerable code. A revealed that RCE attacks are also a possibility.

A couple of other Exim vulnerabilities have made headlines the past few months. In June, threat actors were found to be targeting servers using Exim via the Watchbog trojan, while (CVE-2019-15846) that could also lead to RCE attacks was discovered in September.

[READ: Jira and Exim vulnerabilities exploited by Watchbog to deliver cryptocurrency miners]

CVE-2019-16928 was introduced with Exim 4.92 and also affects versions 4.92, 4.92.1, and 4.92.2. Versions that predate 4.92 are not affected by the bug.

Exim users are advised to update to the latest ), which includes a fix that addresses CVE-2019-16928.

Security recommendations and live casino online solutions

Vulnerabilities in software are a common ¡ª and unfortunately unavoidable ¡ª occurrence. Organizations should always prioritize patching their software to the latest versions, especially if the update addresses critical vulnerabilities that, if exploited, could result in actual damage to the businesses. In this case, CVE-2019-16928 already has a patch that fixes the flaw and Exim has even offered a backported fix for organizations that cannot install the new version. Given Exim¡¯s ubiquity, neglecting to patch vulnerable instances can lead to consequences that extend beyond the organization itself.

Furthermore, organizations can strengthen their overall security by using security products like the?live casino online??Deep Discovery? solution, which provides detection, in-depth analysis, and proactive response to attacks that exploit vulnerabilities via specialized engines, custom?, and seamless correlation across the entire attack life cycle, allowing it to detect these attacks even without any engine or pattern update.?