CVE-2019-14697 : Vulnerability Insights and Analysis

A vulnerability in musl libc up to version 1.1.23 could lead to out-of-bounds writes due to an imbalance in the x87 floating-point stack adjustment.

Understanding CVE-2019-14697

This CVE identifies a specific issue in musl libc that could result in security vulnerabilities.

What is CVE-2019-14697?

An imbalance in the x87 floating-point stack adjustment has been discovered in musl libc up to version 1.1.23. This issue is related to the math/i386/ directory and may lead to out-of-bounds writes in certain scenarios.

The Impact of CVE-2019-14697

The vulnerability could allow attackers to exploit out-of-bounds writes, potentially leading to unauthorized access or code execution.

Technical Details of CVE-2019-14697

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The x87 floating-point stack adjustment imbalance in musl libc up to version 1.1.23 could introduce out-of-bounds writes not present in an application's source code.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: up to musl libc 1.1.23

Exploitation Mechanism

Attackers could exploit this vulnerability by manipulating the x87 floating-point stack adjustment, leading to out-of-bounds writes.

Mitigation and Prevention

Protecting systems from CVE-2019-14697 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update musl libc to version 1.1.24 or later to mitigate the vulnerability.
Monitor for any unusual activities that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update software and libraries to the latest versions to address known vulnerabilities.
Implement strong access controls and monitoring mechanisms to detect and prevent unauthorized access.

Patching and Updates

Apply patches provided by the musl libc maintainers promptly to address the x87 floating-point stack adjustment imbalance.