CVE-2017-15266 Explained : Impact and Mitigation

A Divide-By-Zero issue in GNU Libextractor 1.4 can lead to a vulnerability when the sample rate is set to zero.

Understanding CVE-2017-15266

This CVE involves a specific vulnerability in GNU Libextractor 1.4 due to a Divide-By-Zero issue.

What is CVE-2017-15266?

This CVE identifies a vulnerability in EXTRACTOR_wav_extract_method within wav_extractor.c in GNU Libextractor 1.4. The issue arises when the sample rate is configured to zero.

The Impact of CVE-2017-15266

The vulnerability can potentially be exploited to cause a denial of service (DoS) or other security breaches on systems utilizing GNU Libextractor 1.4.

Technical Details of CVE-2017-15266

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability stems from a Divide-By-Zero issue in EXTRACTOR_wav_extract_method in wav_extractor.c within GNU Libextractor 1.4.

Affected Systems and Versions

Product: GNU Libextractor 1.4
Version: All versions are affected

Exploitation Mechanism

The vulnerability can be exploited by setting the sample rate to zero, triggering the Divide-By-Zero issue in the wav_extractor.c file.

Mitigation and Prevention

Protecting systems from CVE-2017-15266 requires specific actions.

Immediate Steps to Take

Update GNU Libextractor to a patched version that addresses the Divide-By-Zero vulnerability.
Implement proper input validation to prevent setting the sample rate to zero.

Long-Term Security Practices

Regularly monitor for security updates and patches for GNU Libextractor.
Conduct security audits to identify and mitigate similar vulnerabilities in the future.

Patching and Updates

Apply patches provided by GNU Libextractor promptly to fix the Divide-By-Zero issue and enhance system security.