CVE-2019-2244 : Exploit Details and Defense Strategies

Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Wearable by Qualcomm, Inc. are affected by an integer underflow issue when calculating elementary stream information length.

Understanding CVE-2019-2244

This CVE involves a potential integer underflow problem in various Qualcomm products, leading to a vulnerability in video processing.

What is CVE-2019-2244?

The vulnerability arises from miscalculating the length of elementary stream information, which can result in an integer underflow issue when an invalid section length is used to read from the input buffer.

The Impact of CVE-2019-2244

The vulnerability could be exploited to trigger a buffer overflow, potentially allowing an attacker to execute arbitrary code or disrupt the system's normal operation.

Technical Details of CVE-2019-2244

This section provides detailed technical insights into the CVE.

Vulnerability Description

The vulnerability involves an integer underflow issue in video processing due to incorrect calculation of elementary stream information length.

Affected Systems and Versions

Products: Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Wearable
Versions: MDM9206, MDM9607, MDM9650, MSM8909W, MSM8996AU, QCS605, Qualcomm 215, SD 210/SD 212/SD 205, SD 425, SD 427, SD 430, SD 435, SD 439 / SD 429, SD 450, SD 600, SD 615/16/SD 415, SD 625, SD 632, SD 636, SD 650/52, SD 712 / SD 710 / SD 670, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 855, SDA660, SDM439, SDM630, SDM660, SDX20, Snapdragon_High_Med_2016

Exploitation Mechanism

The vulnerability can be exploited by manipulating the section length to trigger the integer underflow, leading to potential buffer overflow and subsequent code execution.

Mitigation and Prevention

Protect your systems from CVE-2019-2244 with these measures:

Immediate Steps to Take

Apply patches and updates provided by Qualcomm.
Monitor vendor communications for security advisories.
Implement network segmentation to limit the impact of potential attacks.

Long-Term Security Practices

Regularly update and patch all software and firmware.
Conduct security assessments and penetration testing.
Educate users on safe computing practices to prevent exploitation.

Patching and Updates

Stay informed about security updates from Qualcomm.
Apply patches promptly to address known vulnerabilities and enhance system security.