CVE-2020-35533 : Security Advisory and Response

LibRaw has an out-of-bounds read vulnerability in the "LibRaw::adobe_copy_pixel()" function when processing image file data.

Understanding CVE-2020-35533

This CVE involves an out-of-bounds read vulnerability in the LibRaw library.

What is CVE-2020-35533?

The vulnerability exists in the "LibRaw::adobe_copy_pixel()" function within the LibRaw library, specifically in the dng.cpp file, allowing unauthorized access to memory beyond the allocated buffer.

The Impact of CVE-2020-35533

The vulnerability could be exploited by an attacker to read sensitive information from the memory, leading to potential information disclosure or further exploitation.

Technical Details of CVE-2020-35533

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability is an out-of-bounds read issue within the "LibRaw::adobe_copy_pixel()" function in the LibRaw library.

Affected Systems and Versions

Product: LibRaw
Versions: LibRaw 0.21-Beta1, LibRaw 0.20.2, LibRaw 0.20.1, LibRaw 0.20.0, LibRaw 0.20-RC2

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating image files to trigger the out-of-bounds read in the affected function.

Mitigation and Prevention

Protecting systems from CVE-2020-35533 is crucial to maintaining security.

Immediate Steps to Take

Apply the latest security updates provided by LibRaw to patch the vulnerability.
Monitor for any unusual activities on the system that could indicate exploitation.

Long-Term Security Practices

Regularly update software and libraries to ensure the latest security patches are in place.
Implement secure coding practices to prevent similar vulnerabilities in the future.

Patching and Updates

Ensure that all systems using LibRaw are updated to versions that contain the fix for CVE-2020-35533.