CVE-2021-42268 : Security Advisory and Response
Learn about CVE-2021-42268 impacting Adobe Animate <=21.0.9. Discover the vulnerability, its impact, and mitigation steps to prevent application denial-of-service.
Adobe Animate version 21.0.9 (and earlier) is impacted by a Null pointer dereference vulnerability when handling specially crafted FLA files, potentially leading to application denial-of-service.
Understanding CVE-2021-42268
What is CVE-2021-42268?
Adobe Animate version 21.0.9 and prior versions suffer from a Null pointer dereference vulnerability during the parsing of malicious FLA files. An unauthenticated attacker could exploit this flaw to trigger an application denial-of-service in the context of the user.
The Impact of CVE-2021-42268
This vulnerability has the following impact:
- CVSS Base Score: 5.5 (Medium)
- Attack Vector: Local
- Attack Complexity: Low
- User Interaction: Required
- Availability Impact: High
- CWE ID: CWE-476 (NULL Pointer Dereference)
Technical Details of CVE-2021-42268
Vulnerability Description
The vulnerability involves a Null pointer dereference issue in Adobe Animate, allowing an unauthenticated attacker to exploit a specially crafted FLA file.
Affected Systems and Versions
- Product: Adobe Animate
- Vendor: Adobe
- Versions affected: <= 21.0.9
Exploitation Mechanism
The exploitation requires the victim to open a malicious FLA file, leading to a denial-of-service condition in the application.
Mitigation and Prevention
Immediate Steps to Take
- Update Adobe Animate to the latest version.
- Avoid opening FLA files from untrusted sources.
Long-Term Security Practices
- Regularly educate users on safe file handling practices.
- Employ security solutions to detect and prevent such vulnerabilities.
Patching and Updates
Apply all relevant security patches provided by Adobe to mitigate the CVE-2021-42268 vulnerability.