CVE-2021-39847 : Vulnerability Insights and Analysis

This CVE record discusses a stack-based buffer overflow vulnerability in the XMP Toolkit SDK that may allow for arbitrary code execution.

Understanding CVE-2021-39847

This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2021-39847.

What is CVE-2021-39847?

CVE-2021-39847 refers to a stack-based buffer overflow vulnerability present in the XMP Toolkit SDK (version 2020.1 and earlier). The flaw could enable an attacker to execute arbitrary code within the user's context by exploiting a crafted file that requires user interaction.

The Impact of CVE-2021-39847

The vulnerability poses a high risk with a CVSS base score of 7.8 (High severity). It can lead to arbitrary code execution, compromising confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2021-39847

This section delves into specific technical aspects of the vulnerability.

Vulnerability Description

The vulnerability identified is a stack-based buffer overflow (CWE-121) in the XMP Toolkit SDK.

Affected Systems and Versions

Vendor: Adobe
Product: XMP Toolkit
Affected Versions:
Version 2020.1 and earlier (custom versions)

Exploitation Mechanism

The exploitation requires user interaction, where an unwitting user must open a maliciously crafted file to trigger the buffer overflow.

Mitigation and Prevention

Explore the following measures to mitigate the risks associated with CVE-2021-39847.

Immediate Steps to Take

Update XMP Toolkit SDK to a patched version if available.
Avoid opening files from untrusted or unknown sources.

Long-Term Security Practices

Conduct regular security training to recognize and avoid social engineering tactics.
Implement a robust security posture including network segmentation and access controls.

Patching and Updates

Apply security patches provided by Adobe promptly to address the vulnerability.