CVE-2021-43018 : Security Advisory and Response
Learn about CVE-2021-43018 affecting Adobe Photoshop versions. Understand the out-of-bounds write vulnerability's impact, affected systems, exploitation mechanism, and mitigation steps.
Adobe Photoshop versions 23.0.2 and 22.5.4 (and earlier) are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user.
Understanding CVE-2021-43018
What is CVE-2021-43018?
This CVE refers to an out-of-bounds write vulnerability in Adobe Photoshop versions that could allow an attacker to execute arbitrary code by tricking a user into opening a malicious JPG file.
The Impact of CVE-2021-43018
The vulnerability poses a high risk with a base severity score of 7.8 and could lead to arbitrary code execution in the affected system.
Technical Details of CVE-2021-43018
Vulnerability Description
This CVE involves an out-of-bounds write vulnerability allowing attackers to execute code by exploiting how Adobe Photoshop handles JPEG2000 parsing.
Affected Systems and Versions
- Product: Photoshop Desktop
- Vendor: Adobe
- Affected Versions: <= 22.5.3
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Local
- User Interaction Required: Yes
Mitigation and Prevention
Immediate Steps to Take
- Update Adobe Photoshop to a secure version.
- Avoid opening suspicious or unexpected JPG files.
Long-Term Security Practices
- Regularly update software to patch known vulnerabilities.
- Educate users on safe browsing and file handling practices.
Patching and Updates
Adobe has released security updates to address this vulnerability. Stay updated with the latest patches from Adobe.