CVE-2023-49991 Explained : Impact and Mitigation

Espeak-ng 1.52-dev was discovered to contain a Stack Buffer Underflow vulnerability via the function CountVowelPosition at synthdata.c.

Understanding CVE-2023-49991

This article provides insights into CVE-2023-49991, a vulnerability found in Espeak-ng 1.52-dev.

What is CVE-2023-49991?

CVE-2023-49991 is a Stack Buffer Underflow vulnerability identified in Espeak-ng 1.52-dev, specifically in the function CountVowelPosition at synthdata.c.

The Impact of CVE-2023-49991

This vulnerability could potentially allow attackers to execute arbitrary code or trigger a denial of service by causing a stack buffer underflow.

Technical Details of CVE-2023-49991

Let's delve into the specific technical aspects of CVE-2023-49991.

Vulnerability Description

The vulnerability arises due to improper handling of data within the CountVowelPosition function, leading to a stack buffer underflow.

Affected Systems and Versions

Espeak-ng 1.52-dev is confirmed to be affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this flaw by crafting malicious input that triggers the stack buffer underflow, potentially leading to malicious code execution.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2023-49991.

Immediate Steps to Take

Users are advised to refrain from using the vulnerable version of Espeak-ng and implement alternative security measures until a patch is available.

Long-Term Security Practices

It is recommended to stay updated on security advisories, implement secure coding practices, and conduct regular security audits to prevent similar vulnerabilities.

Patching and Updates

Keep an eye out for patches and updates from Espeak-ng to address this vulnerability.