CVE-2021-30336 Explained : Impact and Mitigation
Learn about CVE-2021-30336, a high-severity out-of-bound read vulnerability in Qualcomm products, impacting confidentiality, integrity, and availability. Find mitigation steps and patches.
This article provides an in-depth analysis of CVE-2021-30336, a vulnerability that affects a wide range of Qualcomm products.
Understanding CVE-2021-30336
CVE-2021-30336 is a possible out-of-bound read vulnerability that arises due to the lack of domain input validation while processing APK close session requests in various Qualcomm products.
What is CVE-2021-30336?
The vulnerability in CVE-2021-30336 can lead to a possible out-of-bound read due to inadequate domain input validation during the handling of APK close session requests across multiple Qualcomm products.
The Impact of CVE-2021-30336
The impact of CVE-2021-30336 is rated as high severity. An attacker could exploit this vulnerability to read sensitive information beyond the bounds of the allocated memory, potentially leading to a compromise of confidentiality, integrity, and availability of the affected systems.
Technical Details of CVE-2021-30336
CVE ID: CVE-2021-30336 CVSS Base Score: 8.4 (High) CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability Description
The vulnerability involves a buffer over-read in DSP Services due to a lack of domain input validation in Qualcomm products.
Affected Systems and Versions
Qualcomm products affected by CVE-2021-30336 include Snapdragon Auto, Compute, Connectivity, Industrial IOT, and Wearables across various versions.
Exploitation Mechanism
Attackers can exploit this vulnerability locally without the need for any special privileges, potentially causing a significant impact on the confidentiality, integrity, and availability of the targeted systems.
Mitigation and Prevention
It is crucial to take immediate action to mitigate the risks associated with CVE-2021-30336.
Immediate Steps to Take
- Refer to the official Qualcomm security bulletin for detailed mitigation guidance.
- Implement the recommended security patches provided by Qualcomm to address this vulnerability.
Long-Term Security Practices
- Regularly update and patch all Qualcomm products to ensure protection against known vulnerabilities.
- Monitor security bulletins and advisories from Qualcomm for any future vulnerabilities.
Patching and Updates
Stay informed about the latest security updates and patches released by Qualcomm to address CVE-2021-30336 and other potential threats.