CVE-2019-2253 : Security Advisory and Response

A buffer over-read vulnerability affecting multiple Qualcomm products.

Understanding CVE-2019-2253

What is CVE-2019-2253?

Buffer over-read can occur when parsing an ogg file with a corrupted comment block in various Qualcomm products.

The Impact of CVE-2019-2253

This vulnerability can lead to memory corruption in the video component of the affected systems.

Technical Details of CVE-2019-2253

Vulnerability Description

The vulnerability arises from a buffer over-read issue during the parsing of corrupted ogg files.

Affected Systems and Versions

Affected Products: Snapdragon Auto, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
Affected Versions: MDM9150, MDM9206, MDM9607, MDM9650, MSM8909W, MSM8996AU, QCS405, QCS605, Qualcomm 215, and more.

Exploitation Mechanism

The vulnerability can be exploited by crafting a malicious ogg file with a corrupted comment block to trigger the buffer over-read.

Mitigation and Prevention

Immediate Steps to Take

Apply patches provided by Qualcomm to address the vulnerability.
Regularly update the affected systems to the latest firmware versions.

Long-Term Security Practices

Implement strict file validation mechanisms to prevent the parsing of corrupted files.
Conduct regular security audits and assessments to identify and mitigate similar vulnerabilities.

Patching and Updates

Stay informed about security bulletins and updates from Qualcomm.