CVE-2019-7638 : Security Advisory and Response

CVE-2019-7638 is a heap-based buffer over-read vulnerability found in SDL (Simple DirectMedia Layer) versions 1.2.15 and 2.x through 2.0.9. This vulnerability specifically affects the Map1toN function in video/SDL_pixels.c.

Understanding CVE-2019-7638

This section provides insights into the nature and impact of CVE-2019-7638.

What is CVE-2019-7638?

The CVE-2019-7638 vulnerability is a heap-based buffer over-read issue present in specific versions of SDL, a popular multimedia library.

The Impact of CVE-2019-7638

The vulnerability could allow an attacker to read beyond the allocated memory, potentially leading to information disclosure or a denial of service (DoS) condition.

Technical Details of CVE-2019-7638

Explore the technical aspects of CVE-2019-7638.

Vulnerability Description

The vulnerability arises due to a flaw in the Map1toN function within the SDL_pixels.c file, leading to a heap-based buffer over-read.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions: SDL 1.2.15 and SDL 2.x through 2.0.9

Exploitation Mechanism

The vulnerability can be exploited by an attacker crafting a malicious input that triggers the heap-based buffer over-read in the Map1toN function.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2019-7638.

Immediate Steps to Take

Apply security updates provided by the SDL library maintainers.
Monitor SDL security advisories for patches and updates.

Long-Term Security Practices

Regularly update SDL and other software dependencies to patched versions.
Conduct security assessments and code reviews to identify and address similar vulnerabilities.

Patching and Updates

Install the latest security updates for SDL to address the CVE-2019-7638 vulnerability.