CVE-2018-3848 : Security Advisory and Response

NASA CFITSIO 3.42 has a stack-based buffer overflow vulnerability that can be exploited by crafted images, potentially allowing arbitrary code execution.

Understanding CVE-2018-3848

This CVE involves a vulnerability in the NASA CFITSIO library version 3.42 that can lead to a stack-based buffer overflow.

What is CVE-2018-3848?

The function "ffghbn" in NASA CFITSIO 3.42 is susceptible to a stack-based buffer overflow vulnerability. Crafted images can exploit this flaw, potentially allowing attackers to execute arbitrary code.

The Impact of CVE-2018-3848

CVSS Base Score: 8.8 (High)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2018-3848

NASA CFITSIO 3.42 is affected by a stack-based buffer overflow vulnerability that can have severe consequences.

Vulnerability Description

The vulnerability in the "ffghbn" function of NASA CFITSIO 3.42 allows crafted images to trigger a stack-based buffer overflow, potentially leading to arbitrary code execution.

Affected Systems and Versions

Affected Product: NASA CFITSIO
Vendor: Talos
Affected Version: NASA CFITSIO 3.42

Exploitation Mechanism

Crafted FIT images passed through the library can exploit the vulnerability, enabling attackers to overwrite arbitrary data and potentially execute malicious code.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2018-3848.

Immediate Steps to Take

Update NASA CFITSIO to a patched version.
Implement network security measures to prevent unauthorized access.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update software and libraries to the latest secure versions.
Conduct security audits and penetration testing to identify vulnerabilities.

Patching and Updates

Apply patches provided by Talos or the software vendor to fix the stack-based buffer overflow vulnerability in NASA CFITSIO 3.42.