CVE-2019-2273 : Security Advisory and Response

A denial of service issue affects multiple Qualcomm processors, including Snapdragon Auto, Compute, Connectivity, Consumer IOT, Industrial IOT, Mobile, Voice & Music, and Wearables, triggered by an IOMMU page fault during h265 video playback.

Understanding CVE-2019-2273

What is CVE-2019-2273?

This CVE describes a denial of service vulnerability in various Qualcomm processors when processing h265 video files.

The Impact of CVE-2019-2273

The vulnerability can lead to a denial of service condition in affected Qualcomm processors, potentially disrupting device functionality.

Technical Details of CVE-2019-2273

Vulnerability Description

The issue arises from an IOMMU page fault while playing h265 video files on Snapdragon processors.

Affected Systems and Versions

Affected Processors: MSM8909W, QCS605, Qualcomm 215, SD 210/212/205, SD 425, SD 427, SD 430, SD 435, SD 439/429, SD 450, SD 625, SD 650/52, SD 665, SD 675, SD 712/710/670, SD 730, SD 820, SD 845/850, SD 855, SD 8CX, SDM439, Snapdragon_High_Med_2016, SXR1130

Exploitation Mechanism

The vulnerability is triggered by an IOMMU page fault specifically during the playback of h265 video files.

Mitigation and Prevention

Immediate Steps to Take

Apply vendor-supplied patches or updates to mitigate the vulnerability.
Avoid playing h265 video files from untrusted sources.

Long-Term Security Practices

Regularly update software and firmware to ensure protection against known vulnerabilities.
Implement network security measures to prevent unauthorized access to devices.

Patching and Updates

Check for security bulletins and updates from Qualcomm to address the CVE-2019-2273 vulnerability.