CVE-2020-35532 : Vulnerability Insights and Analysis

LibRaw has an out-of-bounds read vulnerability in the "simple_decode_row()" function that can be exploited by a specially crafted image.

Understanding CVE-2020-35532

This CVE involves an out-of-bounds read vulnerability in LibRaw, potentially leading to security issues.

What is CVE-2020-35532?

The vulnerability in LibRaw allows for an out-of-bounds read within the "simple_decode_row()" function, triggered by a manipulated image.

The Impact of CVE-2020-35532

The vulnerability could be exploited by an attacker to execute arbitrary code or cause a denial of service by crashing the application.

Technical Details of CVE-2020-35532

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

Vulnerability Description

The vulnerability exists in the "simple_decode_row()" function of LibRaw, specifically in the file libraw\src\x3f\x3f_utils_patched.cpp, due to improper handling of image data.

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

The vulnerability can be triggered by providing a manipulated image with a large row_stride field, leading to the out-of-bounds read.

Mitigation and Prevention

Protecting systems from CVE-2020-35532 is crucial to maintaining security.

Immediate Steps to Take

Apply the latest security updates provided by LibRaw to patch the vulnerability.
Avoid opening or processing untrusted or suspicious image files.

Long-Term Security Practices

Regularly update software and libraries to the latest versions to address known vulnerabilities.
Implement proper input validation and boundary checks in image processing functions.

Patching and Updates

Ensure timely installation of security patches and updates released by LibRaw to mitigate the risk of exploitation.