CVE-2021-39862 : Vulnerability Insights and Analysis

Adobe FrameMaker versions 2019 Update 8 and 2020 Release Update 2 are affected by an out-of-bounds read vulnerability that could lead to the disclosure of sensitive memory. This article provides details on the impact, technical details, and mitigation steps.

Understanding CVE-2021-39862

Adobe FrameMaker PostScript File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

What is CVE-2021-39862?

Adobe FrameMaker versions 2019 Update 8 and 2020 Release Update 2 are susceptible to an out-of-bounds read vulnerability. Exploitation requires user interaction through opening a malicious file.

The Impact of CVE-2021-39862

CVSS Score: 3.3 (Low)
Attack Vector: Local
User Interaction: Required
The vulnerability could lead to sensitive memory disclosure and bypassing mitigations like ASLR.

Technical Details of CVE-2021-39862

Adobe FrameMaker vulnerability specifics

Vulnerability Description

Out-of-bounds read vulnerability (CWE-125)
Could lead to sensitive memory exposure

Affected Systems and Versions

Product: FrameMaker
Vendor: Adobe
Affected Versions:
FrameMaker <= 2020.2
FrameMaker <= 2019.8

Exploitation Mechanism

Attacker needs a victim to open a malicious file to exploit the vulnerability

Mitigation and Prevention

Actions to mitigate the CVE-2021-39862 vulnerability

Immediate Steps to Take

Update Adobe FrameMaker to a non-vulnerable version
Be cautious when opening files from untrusted sources

Long-Term Security Practices

Regularly update software and apply security patches
Educate users on safe internet practices

Patching and Updates

Adobe has released security updates to address the vulnerability