CVE-2021-45942 : Vulnerability Insights and Analysis
Learn about the heap-based buffer overflow vulnerability in OpenEXR 3.1.x before 3.1.4 (CVE-2021-45942), its impact, affected systems, exploitation mechanism, and mitigation steps to secure systems.
CVE-2021-45942 involves a heap-based buffer overflow in OpenEXR 3.1.x before version 3.1.4. Learn about its impact, technical details, and mitigation methods.
Understanding CVE-2021-45942
OpenEXR version 3.1.x is susceptible to a critical heap-based buffer overflow vulnerability.
What is CVE-2021-45942?
The vulnerability arises in Imf_3_1::LineCompositeTask::execute, triggered through IlmThread_3_1::NullThreadPoolProvider::addTask and IlmThread_3_1::ThreadPool::addGlobalTask, potentially leading to remote code execution.
The Impact of CVE-2021-45942
The buffer overflow in OpenEXR enables attackers to execute arbitrary code on affected systems, compromising data confidentiality and system integrity.
Technical Details of CVE-2021-45942
Explore the specifics of this vulnerability.
Vulnerability Description
A heap-based buffer overflow exists in certain functions within OpenEXR version 3.1.x, exposing systems to malicious attacks.
Affected Systems and Versions
- Vendor: n/a
- Product: n/a
- Vulnerable Versions: All versions of OpenEXR 3.1.x before 3.1.4
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting malicious inputs, leading to the overflow and potential code execution.
Mitigation and Prevention
Discover the steps to secure systems against CVE-2021-45942.
Immediate Steps to Take
- Update OpenEXR to version 3.1.4 to mitigate the vulnerability.
- Monitor security advisories from relevant vendors for patch availability.
Long-Term Security Practices
- Implement regular security audits and code reviews.
- Enforce the principle of least privilege on system access.
Patching and Updates
- Apply security patches promptly to address known vulnerabilities and enhance system security.