CVE-2017-7586 Explained : Impact and Mitigation

A vulnerability in the "header_read()" function of libsndfile prior to version 1.0.28 allows for a stack-based buffer overflow to be triggered by a specifically crafted FLAC file that contains ID3 tags.

Understanding CVE-2017-7586

This CVE entry describes a vulnerability in the libsndfile library that could be exploited by a specially crafted FLAC file to trigger a stack-based buffer overflow.

What is CVE-2017-7586?

CVE-2017-7586 is a vulnerability in the libsndfile library that exists in versions prior to 1.0.28. The issue arises from an error in the "header_read()" function when handling ID3 tags, allowing for a stack-based buffer overflow.

The Impact of CVE-2017-7586

The vulnerability could be exploited by an attacker to execute arbitrary code or crash the application by providing a malicious FLAC file with crafted ID3 tags.

Technical Details of CVE-2017-7586

This section provides more technical insights into the vulnerability.

Vulnerability Description

In libsndfile before version 1.0.28, a flaw in the "header_read()" function in common.c can be abused to trigger a stack-based buffer overflow through a specially crafted FLAC file.

Affected Systems and Versions

Affected Version: libsndfile versions prior to 1.0.28

Exploitation Mechanism

The vulnerability can be exploited by an attacker by providing a malicious FLAC file containing specifically crafted ID3 tags, triggering the stack-based buffer overflow.

Mitigation and Prevention

To address CVE-2017-7586, follow these mitigation strategies:

Immediate Steps to Take

Update to version 1.0.28 or later of libsndfile to mitigate the vulnerability.
Avoid opening untrusted FLAC files from unknown or unverified sources.

Long-Term Security Practices

Regularly update software and libraries to the latest versions to patch known vulnerabilities.
Implement file input validation mechanisms to prevent the execution of malicious files.

Patching and Updates

Apply patches provided by the libsndfile project to fix the vulnerability and enhance security measures.