CVE-2019-2338 : Security Advisory and Response
Learn about CVE-2019-2338, a vulnerability in Snapdragon platforms allowing unauthorized access to secure world memory. Find out affected systems, versions, and mitigation steps.
A carefully designed image with a valid signature from a non-QC entity can be uploaded, enabling it to access and modify the memory that belongs to the secure world in various Snapdragon platforms such as Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking. This includes specific chipsets like MDM9205, MSM8998, QCS404, QCS605, SDA660, SDA845, SDM630, SDM636, SDM660, SDM670, SDM710, SDM845, SDM850, SDX24, SM6150, SM7150, SM8150, SXR1130, SXR2130.
Understanding CVE-2019-2338
Crafted image that has a valid signature from a non-QC entity can be loaded which can read/write memory that belongs to the secure world in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking in MDM9205, MSM8998, QCS404, QCS605, SDA660, SDA845, SDM630, SDM636, SDM660, SDM670, SDM710, SDM845, SDM850, SDX24, SM6150, SM7150, SM8150, SXR1130, SXR2130.
What is CVE-2019-2338?
- Vulnerability in Snapdragon platforms allows a crafted image to access and modify secure world memory.
The Impact of CVE-2019-2338
- Unauthorized access and modification of secure world memory in various Snapdragon platforms.
Technical Details of CVE-2019-2338
A crafted image with a valid signature from a non-QC entity can exploit this vulnerability.
Vulnerability Description
- Use of Out-of-range Pointer Offset in QTEE.
Affected Systems and Versions
- Vendor: Qualcomm, Inc.
- Products: Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking.
- Versions: MDM9205, MSM8998, QCS404, QCS605, SDA660, SDA845, SDM630, SDM636, SDM660, SDM670, SDM710, SDM845, SDM850, SDX24, SM6150, SM7150, SM8150, SXR1130, SXR2130.
Exploitation Mechanism
- Crafted image with a valid signature from a non-QC entity can be uploaded to exploit the vulnerability.
Mitigation and Prevention
Immediate Steps to Take:
- Apply patches provided by Qualcomm.
- Monitor for any unauthorized access or modifications.
Long-Term Security Practices:
- Regularly update software and firmware.
- Implement secure boot mechanisms.
Patching and Updates:
- Stay informed about security bulletins and updates from Qualcomm.