CVE-2021-39820 : What You Need to Know
Learn about CVE-2021-39820, an Adobe InDesign Memory Corruption Vulnerability that could lead to arbitrary code execution. Stay secure with mitigation steps.
This CVE article provides insights into an Adobe InDesign Memory Corruption Vulnerability that could lead to arbitrary code execution.
Understanding CVE-2021-39820
Adobe InDesign versions 16.3 and earlier are affected by an Out-of-bounds Write vulnerability due to insecure handling of a malicious TIFF file, potentially resulting in arbitrary code execution.
What is CVE-2021-39820?
- Vulnerability Type: Out-of-bounds Write (CWE-787)
- Attack Vector: Local
- User Interaction Required: Yes
The Impact of CVE-2021-39820
The vulnerability has a CVSS base score of 7.8 (High severity) and could lead to:
- High Impact on Confidentiality, Integrity, and Availability
- Arbitrary code execution in the user's context
Technical Details of CVE-2021-39820
Adobe InDesign Memory Corruption Vulnerability
Vulnerability Description
- Insecure handling of a malicious TIFF file
- Out-of-bounds Write issue
Affected Systems and Versions
- Product: InDesign
- Vendor: Adobe
- Affected Versions: 16.3 and earlier
Exploitation Mechanism
- User interaction required for exploitation
Mitigation and Prevention
Protect your systems from the Adobe InDesign Memory Corruption Vulnerability
Immediate Steps to Take
- Apply the patch provided by Adobe
- Be cautious while opening TIFF files
Long-Term Security Practices
- Keep software up to date
- Educate users on safe browsing practices
Patching and Updates
- Refer to the Adobe security advisory (APSB21-73) for patch information