CVE-2022-27419 : Exploit Details and Defense Strategies

A stack overflow vulnerability was discovered in rtl_433 21.12, specifically in the acurite_00275rm_decode function at /devices/acurite.c. This flaw could be exploited by attackers to launch a Denial of Service (DoS) attack by using a malicious file.

Understanding CVE-2022-27419

This CVE refers to a vulnerability in rtl_433 21.12 that can lead to a DoS attack.

What is CVE-2022-27419?

CVE-2022-27419 is a stack overflow vulnerability found in the acurite_00275rm_decode function of rtl_433 21.12, allowing threat actors to trigger a DoS attack through a crafted file.

The Impact of CVE-2022-27419

This vulnerability can be exploited by malicious actors to disrupt the normal operation of systems running affected versions of rtl_433, causing a denial of service situation.

Technical Details of CVE-2022-27419

Here are the key technical details related to CVE-2022-27419:

Vulnerability Description

The vulnerability exists in the acurite_00275rm_decode function of rtl_433 21.12, enabling an attacker to overflow the stack and trigger a DoS condition.

Affected Systems and Versions

The issue affects rtl_433 21.12. No specific product or vendor details are available.

Exploitation Mechanism

Attackers can exploit this vulnerability by providing a specially crafted file to the affected system, leading to a stack overflow and subsequent DoS.

Mitigation and Prevention

To safeguard systems from CVE-2022-27419, consider the following mitigation strategies:

Immediate Steps to Take

Update rtl_433 to a patched version that addresses the stack overflow issue.
Implement network security measures to detect and block malicious files.

Long-Term Security Practices

Regularly monitor for security advisories related to rtl_433 and apply patches promptly.
Conduct security assessments to identify and resolve potential vulnerabilities in software components.

Patching and Updates

Stay informed about security updates released by rtl_433 and promptly apply patches to mitigate the risk of exploitation.