CVE-2021-44705 : What You Need to Know
Discover the impact of CVE-2021-44705 on Adobe Acrobat Reader. Learn about the use-after-free vulnerability, its exploitation, and mitigation steps to secure your system.
Adobe Acrobat Reader DC versions 21.007.20099 and earlier, 20.004.30017 and earlier, and 17.011.30204 and earlier are susceptible to a use-after-free vulnerability, potentially leading to arbitrary code execution.
Understanding CVE-2021-44705
Adobe Acrobat Reader is affected by a use-after-free vulnerability, requiring user interaction to exploit, and posing a high risk with a CVSS base score of 7.8.
What is CVE-2021-44705?
The vulnerability in Adobe Acrobat Reader allows attackers to execute arbitrary code by leveraging a flaw in processing Format event actions.
The Impact of CVE-2021-44705
- Severity: High
- CVSS Base Score: 7.8
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- User Interaction: Required
Technical Details of CVE-2021-44705
Adobe Acrobat Reader is affected by a use-after-free vulnerability, impacting various versions.
Vulnerability Description
The vulnerability stems from incorrect handling of Format event actions, enabling attackers to execute arbitrary code within the user's context.
Affected Systems and Versions
- Acrobat Reader DC version 21.007.20099 and earlier
- Acrobat Reader DC version 20.004.30017 and earlier
- Acrobat Reader DC version 17.011.30204 and earlier
- Acrobat Reader DC version None
Exploitation Mechanism
To exploit this vulnerability, a victim must interact with a malicious file, triggering the use-after-free condition and potentially leading to arbitrary code execution.
Mitigation and Prevention
Immediate actions and long-term security practices can help mitigate risks associated with CVE-2021-44705.
Immediate Steps to Take
- Update: Install the latest security patches provided by Adobe.
- Exercise Caution: Avoid opening files from untrusted sources.
Long-Term Security Practices
- Regular Updates: Maintain up-to-date software versions.
- User Awareness: Educate users about the risks of opening unknown files.
Patching and Updates
To address CVE-2021-44705, Adobe has released security updates. Ensure your Acrobat Reader is updated to the latest version for protection.