CVE-2020-11765 : What You Need to Know
Discover the impact of CVE-2020-11765, an OpenEXR vulnerability before 2.4.1, leading to an out-of-bounds read error. Learn how to mitigate and prevent this security issue.
An issue was discovered in OpenEXR before 2.4.1. There is an off-by-one error in use of the ImfXdr.h read function by DwaCompressor::Classifier::Classifier, leading to an out-of-bounds read.
Understanding CVE-2020-11765
What is CVE-2020-11765?
CVE-2020-11765 is a vulnerability found in OpenEXR before version 2.4.1, involving an off-by-one error in the ImfXdr.h read function.
The Impact of CVE-2020-11765
The vulnerability can result in an out-of-bounds read, potentially leading to security breaches and unauthorized access to sensitive information.
Technical Details of CVE-2020-11765
Vulnerability Description
The issue arises from incorrect use of the ImfXdr.h read function by DwaCompressor::Classifier::Classifier, causing an off-by-one error.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by malicious actors to read out-of-bounds memory, potentially leading to information disclosure or system compromise.
Mitigation and Prevention
Immediate Steps to Take
- Update OpenEXR to version 2.4.1 or later to mitigate the vulnerability.
- Monitor vendor advisories and security mailing lists for patches and updates.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions to address known vulnerabilities.
- Implement secure coding practices to prevent similar memory-related issues.
Patching and Updates
- Apply security patches promptly to ensure that systems are protected against known vulnerabilities.