CVE-2020-11762 : Vulnerability Insights and Analysis

An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds read and write in DwaCompressor::uncompress in ImfDwaCompressor.cpp when handling the UNKNOWN compression case.

Understanding CVE-2020-11762

This CVE involves a vulnerability in OpenEXR that could lead to out-of-bounds read and write operations.

What is CVE-2020-11762?

CVE-2020-11762 is a security vulnerability found in OpenEXR versions prior to 2.4.1. The issue arises from improper handling of the UNKNOWN compression case in the DwaCompressor::uncompress function within ImfDwaCompressor.cpp.

The Impact of CVE-2020-11762

The vulnerability could be exploited by a remote attacker to execute arbitrary code or cause a denial of service (DoS) condition on the affected system.

Technical Details of CVE-2020-11762

This section provides more in-depth technical details about the CVE.

Vulnerability Description

The vulnerability involves an out-of-bounds read and write in the DwaCompressor::uncompress function in ImfDwaCompressor.cpp.

Affected Systems and Versions

Product: OpenEXR
Vendor: N/A
Versions affected: All versions before 2.4.1

Exploitation Mechanism

The vulnerability can be exploited by a remote attacker to trigger the out-of-bounds read and write operations, potentially leading to code execution or a DoS condition.

Mitigation and Prevention

Protecting systems from CVE-2020-11762 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update OpenEXR to version 2.4.1 or later to mitigate the vulnerability.
Monitor vendor advisories and apply patches promptly.

Long-Term Security Practices

Regularly update software and firmware to the latest versions.
Implement network segmentation and access controls to limit exposure to potential threats.

Patching and Updates

Apply security patches provided by OpenEXR promptly to address the vulnerability and enhance system security.