CVE-2019-19746 Explained : Impact and Mitigation

Xfig fig2dev 3.2.7b has an integer overflow vulnerability in the "make_arrow" function, leading to a segmentation fault and out-of-bounds write when processing large arrow types.

Understanding CVE-2019-19746

This CVE involves an integer overflow issue in Xfig fig2dev 3.2.7b that can result in a segmentation fault and out-of-bounds write.

What is CVE-2019-19746?

The vulnerability occurs in the "make_arrow" function of the "arrow.c" file within Xfig fig2dev 3.2.7b, triggered by processing large arrow types.

The Impact of CVE-2019-19746

The vulnerability can lead to a segmentation fault and out-of-bounds write, potentially allowing attackers to execute arbitrary code or crash the application.

Technical Details of CVE-2019-19746

Xfig fig2dev 3.2.7b is susceptible to an integer overflow vulnerability in the "make_arrow" function.

Vulnerability Description

The issue arises due to an integer overflow in the processing of large arrow types, leading to a segmentation fault and out-of-bounds write.

Affected Systems and Versions

Product: Xfig fig2dev 3.2.7b
Vendor: N/A
Version: N/A

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious input that triggers the integer overflow when processing large arrow types.

Mitigation and Prevention

To address CVE-2019-19746, follow these mitigation strategies:

Immediate Steps to Take

Apply vendor patches or updates promptly.
Monitor vendor advisories for security patches.
Restrict network access to vulnerable systems.

Long-Term Security Practices

Conduct regular security assessments and audits.
Implement secure coding practices to prevent integer overflow vulnerabilities.
Educate developers on secure coding techniques.

Patching and Updates

Update Xfig fig2dev to a patched version that addresses the integer overflow vulnerability.