CVE-2019-13626 Explained : Impact and Mitigation

CVE-2019-13626 is an integer overflow vulnerability in the IMA_ADPCM_decode() function within the SDL (Simple DirectMedia Layer) library versions 2.x to 2.0.9, leading to a heap-based buffer over-read in Fill_IMA_ADPCM_block.

Understanding CVE-2019-13626

This CVE identifies a specific security issue within the SDL library that can be exploited to cause a heap-based buffer over-read.

What is CVE-2019-13626?

The vulnerability arises from an integer overflow in the IMA_ADPCM_decode() function in SDL_wave.c, affecting versions 2.x to 2.0.9 of the SDL library.

The Impact of CVE-2019-13626

This vulnerability could be exploited by an attacker to trigger a heap-based buffer over-read, potentially leading to information disclosure or denial of service.

Technical Details of CVE-2019-13626

Vulnerability Description

The vulnerability is due to an integer overflow in the IMA_ADPCM_decode() function, allowing for a heap-based buffer over-read in Fill_IMA_ADPCM_block.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions: All versions of SDL library from 2.x to 2.0.9

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious input to trigger the integer overflow, leading to the buffer over-read.

Mitigation and Prevention

Immediate Steps to Take

Apply patches provided by the SDL library to address the vulnerability.
Monitor SDL library updates for security patches and apply them promptly.

Long-Term Security Practices

Regularly update software libraries and dependencies to mitigate known vulnerabilities.
Implement input validation mechanisms to prevent integer overflow vulnerabilities.

Patching and Updates

Ensure that the SDL library is regularly updated to the latest version to patch known security vulnerabilities.