CVE-2021-21065 : What You Need to Know
Learn about CVE-2021-21065 affecting Adobe Bridge versions 11.0 and earlier. This high-severity vulnerability allows arbitrary code execution, impacting confidentiality, integrity, and availability. Find mitigation steps and security best practices.
Adobe Bridge version 11.0 (and earlier) is affected by an out-of-bounds write vulnerability when parsing TTF files. This could lead to arbitrary code execution in the context of the current user, requiring user interaction for exploitation.
Understanding CVE-2021-21065
This CVE relates to a high-severity vulnerability in Adobe Bridge that could allow an attacker to execute arbitrary code on the affected system.
What is CVE-2021-21065?
Adobe Bridge version 11.0 and earlier are susceptible to an out-of-bounds write vulnerability during TTF file parsing. Successful exploitation could result in arbitrary code execution within the user's context.
The Impact of CVE-2021-21065
The impact of this vulnerability is classified as high, with a CVSS base score of 7.8. It affects confidentiality, integrity, and availability, with no privileges required for exploitation, but user interaction is necessary.
Technical Details of CVE-2021-21065
This section provides in-depth technical insights into the vulnerability.
Vulnerability Description
The vulnerability exists in Adobe Bridge's handling of TTF files, allowing an attacker to trigger an out-of-bounds write leading to potential code execution.
Affected Systems and Versions
Adobe Bridge versions 11.0 and earlier are confirmed to be affected by this vulnerability.
Exploitation Mechanism
Successful exploitation of CVE-2021-21065 requires a victim to open a malicious TTF file, enabling an attacker to execute arbitrary code on the target system.
Mitigation and Prevention
Protecting systems from CVE-2021-21065 requires immediate action and adherence to robust security practices.
Immediate Steps to Take
Users are advised to update Adobe Bridge to the latest version to mitigate this vulnerability. Exercise caution while opening TTF files from untrusted sources.
Long-Term Security Practices
Regularly update software, use file integrity monitoring tools, and educate users on safe file handling practices to enhance overall security posture.
Patching and Updates
Adobe has released a security advisory addressing CVE-2021-21065. Users should apply the latest patches and updates promptly to safeguard their systems.