CVE-2020-11763 : Security Advisory and Response

An issue was discovered in OpenEXR before 2.4.1. There is an std::vector out-of-bounds read and write, as demonstrated by ImfTileOffsets.cpp.

Understanding CVE-2020-11763

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

What is CVE-2020-11763?

CVE-2020-11763 is a security vulnerability found in OpenEXR before version 2.4.1. The issue allows for an std::vector out-of-bounds read and write, as evidenced by ImfTileOffsets.cpp.

The Impact of CVE-2020-11763

The vulnerability could be exploited by an attacker to read or write beyond the boundaries of allocated memory, potentially leading to a crash or arbitrary code execution.

Technical Details of CVE-2020-11763

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

Vulnerability Description

The vulnerability in OpenEXR before 2.4.1 allows for an std::vector out-of-bounds read and write, as demonstrated by ImfTileOffsets.cpp.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by manipulating certain vectors to read or write data outside the bounds of allocated memory.

Mitigation and Prevention

Protecting systems from CVE-2020-11763 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 for any unusual activities on the system that could indicate exploitation.

Long-Term Security Practices

Regularly update software and libraries to the latest versions to patch known vulnerabilities.
Implement proper input validation and boundary checks in code to prevent similar issues.
Conduct regular security assessments and audits to identify and address potential weaknesses.

Patching and Updates

Ensure timely application of security patches and updates provided by OpenEXR to address CVE-2020-11763.