CVE-2019-13218 : Security Advisory and Response

CVE-2019-13218 is a vulnerability found in the stb_vorbis library that allows an attacker to trigger a denial of service by exploiting a division by zero issue in the predict_point function.

Understanding CVE-2019-13218

This CVE identifies a specific vulnerability in the stb_vorbis library that can be exploited to cause a denial of service.

What is CVE-2019-13218?

The CVE-2019-13218 vulnerability arises from a division by zero flaw in the predict_point function within the stb_vorbis library. By manipulating a specially crafted Ogg Vorbis file, an attacker can trigger this vulnerability, leading to a denial of service condition.

The Impact of CVE-2019-13218

Exploiting this vulnerability can result in a denial of service, causing the affected system to become unresponsive or crash.

Technical Details of CVE-2019-13218

This section provides more technical insights into the CVE-2019-13218 vulnerability.

Vulnerability Description

The vulnerability in the stb_vorbis library allows an attacker to perform a division by zero in the predict_point function, leading to a denial of service.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions: All versions of the stb_vorbis library until 2019-03-04 are affected.

Exploitation Mechanism

To exploit this vulnerability, an attacker needs to manipulate a specifically crafted Ogg Vorbis file to trigger the division by zero issue in the predict_point function.

Mitigation and Prevention

Protecting systems from CVE-2019-13218 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the stb_vorbis library to a patched version that addresses the division by zero vulnerability.
Be cautious when handling Ogg Vorbis files from untrusted sources.

Long-Term Security Practices

Regularly update software libraries and components to mitigate known vulnerabilities.
Implement file validation mechanisms to detect and prevent maliciously crafted files.

Patching and Updates

Ensure that the stb_vorbis library is regularly updated to the latest version to patch known vulnerabilities.