CVE-2018-7435 : What You Need to Know

FreeXL version 1.0.5 and earlier versions contain a heap-based buffer over-read vulnerability in the freexl::destroy_cell function.

Understanding CVE-2018-7435

This CVE entry describes a specific vulnerability found in FreeXL software.

What is CVE-2018-7435?

CVE-2018-7435 is a security flaw identified in FreeXL versions 1.0.5 and prior, leading to a heap-based buffer over-read within the freexl::destroy_cell function.

The Impact of CVE-2018-7435

The vulnerability could potentially allow an attacker to exploit the heap-based buffer over-read, leading to information disclosure or a denial of service (DoS) condition.

Technical Details of CVE-2018-7435

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The issue in FreeXL before version 1.0.5 arises from a heap-based buffer over-read within the freexl::destroy_cell function.

Affected Systems and Versions

Product: FreeXL
Vendor: N/A
Versions affected: 1.0.5 and earlier

Exploitation Mechanism

The vulnerability can be exploited by crafting a malicious input that triggers the heap-based buffer over-read in the freexl::destroy_cell function.

Mitigation and Prevention

Protecting systems from CVE-2018-7435 requires immediate actions and long-term security measures.

Immediate Steps to Take

Update FreeXL to version 1.0.5 or later to mitigate the vulnerability.
Monitor vendor advisories and security mailing lists for patches and updates.

Long-Term Security Practices

Regularly apply security patches and updates to all software components.
Conduct security assessments and audits to identify and address vulnerabilities proactively.

Patching and Updates

Apply patches provided by FreeXL promptly to address the heap-based buffer over-read vulnerability.