CVE-2019-2284 : Exploit Details and Defense Strategies

A use-after-free vulnerability due to a race condition in camera ioctl calls on various Qualcomm Snapdragon platforms.

Understanding CVE-2019-2284

This CVE involves a potential use-after-free issue on multiple Qualcomm Snapdragon platforms.

What is CVE-2019-2284?

The vulnerability arises from a race condition when calling camera ioctl concurrently on specific Qualcomm Snapdragon platforms.

The Impact of CVE-2019-2284

The vulnerability could be exploited to execute arbitrary code or cause a denial of service on affected devices.

Technical Details of CVE-2019-2284

Qualcomm Snapdragon platforms are susceptible to a use-after-free vulnerability due to a race condition in camera ioctl calls.

Vulnerability Description

The issue stems from a race condition during camera ioctl calls, leading to a potential use-after-free problem.

Affected Systems and Versions

Affected Platforms: Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
Vulnerable Versions: MSM8909W, QCS405, QCS605, Qualcomm 215, SD 425, SD 439 / SD 429, SD 450, SD 625, SD 632, SD 665, SD 675, SD 712 / SD 710 / SD 670, SD 730, SD 845 / SD 850, SD 855, SDM439, SDX24

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to trigger a use-after-free condition through concurrent camera ioctl calls.

Mitigation and Prevention

Steps to address and prevent the CVE-2019-2284 vulnerability.

Immediate Steps to Take

Apply security patches provided by Qualcomm promptly.
Monitor vendor communications for updates and advisories.
Implement strict access controls to limit potential exploitation.

Long-Term Security Practices

Regularly update firmware and software to mitigate known vulnerabilities.
Conduct security assessments and audits to identify and address potential weaknesses.

Patching and Updates

Install the latest firmware updates from Qualcomm to address the use-after-free vulnerability.