CVE-2020-19490 : What You Need to Know

Tinyexr 0.9.5 has an integer overflow over-write vulnerability in tinyexr::DecodePixelData in tinyexr.h, related to OpenEXR code.

Understanding CVE-2020-19490

This CVE involves an integer overflow vulnerability in the Tinyexr library.

What is CVE-2020-19490?

The CVE-2020-19490 vulnerability is a specific flaw in the Tinyexr library version 0.9.5 that allows for an integer overflow over-write in the DecodePixelData function.

The Impact of CVE-2020-19490

This vulnerability could potentially be exploited by attackers to execute arbitrary code or cause a denial of service on systems using the affected version of the Tinyexr library.

Technical Details of CVE-2020-19490

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability lies in the DecodePixelData function in tinyexr.h, which can be abused to trigger an integer overflow over-write.

Affected Systems and Versions

Product: N/A
Vendor: N/A
Version: 0.9.5

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious input that triggers the integer overflow over-write in the DecodePixelData function.

Mitigation and Prevention

Protecting systems from CVE-2020-19490 requires specific actions.

Immediate Steps to Take

Update to a patched version of the Tinyexr library if available.
Implement input validation to prevent malicious inputs.
Monitor for any unusual system behavior that could indicate exploitation.

Long-Term Security Practices

Regularly update software libraries and dependencies to patch known vulnerabilities.
Conduct security audits and code reviews to identify and address potential vulnerabilities.

Patching and Updates

Stay informed about security advisories related to the Tinyexr library.
Apply patches promptly to mitigate the risk of exploitation.