CVE-2019-1010305 : What You Need to Know

libmspack 0.9.1alpha is affected by a Buffer Overflow vulnerability leading to Information Disclosure. The issue resides in the function chmd_read_headers() within the file libmspack/mspack/chmd.c.

Understanding CVE-2019-1010305

This CVE involves a Buffer Overflow vulnerability in libmspack 0.9.1alpha, potentially resulting in Information Disclosure.

What is CVE-2019-1010305?

The vulnerability in libmspack 0.9.1alpha is a Buffer Overflow issue that allows attackers to disclose information. It specifically affects the function chmd_read_headers() in the file libmspack/mspack/chmd.c. Exploiting this vulnerability requires the victim to open a specially crafted chm file.

The Impact of CVE-2019-1010305

The impact of this vulnerability is Information Disclosure, where an attacker can potentially access sensitive data by exploiting the Buffer Overflow issue in libmspack 0.9.1alpha.

Technical Details of CVE-2019-1010305

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability is a Buffer Overflow in libmspack 0.9.1alpha, allowing attackers to disclose information.

Affected Systems and Versions

Product: libmspack
Vendor: libmspack
Version: 0.9.1alpha [fixed: after commit 2f084136cfe0d05e5bf5703f3e83c6d955234b4d]

Exploitation Mechanism

To exploit this vulnerability, the victim must open a specially crafted chm file, triggering the Buffer Overflow in the function chmd_read_headers().

Mitigation and Prevention

Protecting systems from CVE-2019-1010305 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update to the fixed version released after commit 2f084136cfe0d05e5bf5703f3e83c6d955234b4d
Avoid opening untrusted or suspicious chm files

Long-Term Security Practices

Regularly update software and apply security patches
Implement strong input validation mechanisms to prevent Buffer Overflow vulnerabilities

Patching and Updates

Ensure that all systems running libmspack are updated to the version released after commit 2f084136cfe0d05e5bf5703f3e83c6d955234b4d to mitigate the vulnerability.