CVE-2019-5033 : Security Advisory and Response

In the Aspose.Cells 19.1.0 library, a vulnerability in the Number record parser allows for an out-of-bounds read, potentially leading to remote code execution.

Understanding CVE-2019-5033

This CVE involves a critical vulnerability in the Aspose.Cells library that can be exploited for remote code execution.

What is CVE-2019-5033?

The vulnerability lies in the Number record parser of Aspose Aspose.Cells 19.1.0 library.
An attacker can exploit this flaw by providing a specially crafted XLS file to trigger an out-of-bounds read.
Successful exploitation requires the victim to open the malicious file.

The Impact of CVE-2019-5033

CVSS Base Score: 9.8 (Critical)
Attack Vector: Network
Attack Complexity: Low
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Privileges Required: None
User Interaction: None

Technical Details of CVE-2019-5033

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows for an out-of-bounds read in the Number record parser of Aspose Aspose.Cells 19.1.0.
It can be exploited by a specially crafted XLS file, leading to remote code execution.

Affected Systems and Versions

Affected Product: Aspose
Affected Version: Aspose Aspose.Cells 19.1.0

Exploitation Mechanism

An attacker needs to provide a malformed XLS file to the victim to exploit the vulnerability.

Mitigation and Prevention

Protecting systems from CVE-2019-5033 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the Aspose.Cells library to a patched version.
Avoid opening XLS files from untrusted sources.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Implement network security measures to prevent malicious file downloads.

Patching and Updates

Apply patches provided by Aspose to fix the vulnerability.