CVE-2018-11994 : Exploit Details and Defense Strategies
Learn about CVE-2018-11994 affecting Qualcomm Snapdragon Automobile, Mobile, and Wear devices. Discover the impact, affected versions, and mitigation steps for this security vulnerability.
CVE-2018-11994 was published on November 28, 2018, by Qualcomm, Inc. The vulnerability affects Snapdragon Automobile, Snapdragon Mobile, and Snapdragon Wear devices, allowing secure camera controllers improper access to HLOS memory.
Understanding CVE-2018-11994
The vulnerability in the secure camera logic of SMMU enables unauthorized access to HLOS memory by secure camera controllers in various Qualcomm Snapdragon devices.
What is CVE-2018-11994?
The vulnerability allows secure camera controllers to access HLOS memory during sessions in Snapdragon Automobile, Snapdragon Mobile, and Snapdragon Wear devices.
The Impact of CVE-2018-11994
The vulnerability could lead to unauthorized access to sensitive data stored in the HLOS memory, potentially compromising user privacy and system security.
Technical Details of CVE-2018-11994
The technical aspects of the vulnerability are as follows:
Vulnerability Description
The secure camera logic flaw in SMMU allows secure camera controllers to access HLOS memory improperly.
Affected Systems and Versions
- Products: Snapdragon Automobile, Snapdragon Mobile, Snapdragon Wear
- Versions: MDM9206, MDM9607, MDM9650, MSM8996AU, SD 210/SD 212/SD 205, SD 425, SD 430, SD 450, SD 625, SD 820, SD 820A, SD 835, SD 845, SD 850, SDA660, SDA845, SDX24, SXR1130
Exploitation Mechanism
The secure camera controllers can exploit this vulnerability to gain unauthorized access to HLOS memory during their sessions.
Mitigation and Prevention
To address CVE-2018-11994, the following steps can be taken:
Immediate Steps to Take
- Apply patches provided by Qualcomm to fix the vulnerability.
- Monitor and restrict access to HLOS memory by secure camera controllers.
Long-Term Security Practices
- Regularly update firmware and software to ensure the latest security patches are in place.
- Implement proper access control mechanisms to prevent unauthorized access to sensitive memory areas.
Patching and Updates
- Keep devices up to date with the latest firmware and security updates from Qualcomm.