CVE-2021-1947 : Vulnerability Insights and Analysis
Learn about CVE-2021-1947, a critical use-after-free vulnerability impacting multiple Qualcomm products. Understand its technical details, impact, and mitigation steps.
A use-after-free vulnerability has been identified in the kernel graphics driver in multiple Qualcomm products, including Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, and Snapdragon Wired Infrastructure and Networking.
Understanding CVE-2021-1947
This vulnerability stems from storing an invalid pointer in the mentioned Qualcomm products.
What is CVE-2021-1947?
CVE-2021-1947 is a use-after-free vulnerability that affects multiple Qualcomm products due to improper handling of pointers in the kernel graphics driver.
The Impact of CVE-2021-1947
The vulnerability has a CVSS base score of 8.4, indicating a high severity level. It can lead to high impacts on confidentiality, integrity, and availability of the affected systems.
Technical Details of CVE-2021-1947
The following are some technical details associated with CVE-2021-1947:
Vulnerability Description
The vulnerability arises from storing an invalid pointer in the kernel graphics driver of Qualcomm products, making them susceptible to use-after-free attacks.
Affected Systems and Versions
Qualcomm products impacted include a wide range of Snapdragon processors and connectivity hardware.
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating the invalid pointer to execute arbitrary code on the affected devices.
Mitigation and Prevention
To mitigate the risk associated with CVE-2021-1947, the following steps can be taken:
Immediate Steps to Take
- Apply security patches provided by Qualcomm to fix the vulnerability.
- Monitor network traffic for any suspicious activity that could indicate exploitation.
Long-Term Security Practices
- Regularly update software and firmware on Qualcomm devices to protect against known vulnerabilities.
- Implement strong access controls and network segmentation to limit the impact of potential attacks.
Patching and Updates
Stay informed about security bulletins and updates from Qualcomm to ensure timely application of patches for known vulnerabilities.