CVE-2021-30349 : Exploit Details and Defense Strategies
Learn about CVE-2021-30349 affecting Qualcomm Snapdragon products, leading to possible memory corruption. Understand the impact, affected systems, and mitigation steps to secure your devices.
This CVE-2021-30349 affects a wide range of Qualcomm products, potentially leading to memory corruption due to improper access control sequence in the Snapdragon series, including Snapdragon Auto, Compute, Connectivity, Consumer IOT, Industrial IOT, and more.
Understanding CVE-2021-30349
This section will delve into the specifics of the CVE-2021-30349 vulnerability.
What is CVE-2021-30349?
The vulnerability involves an improper access control sequence for the AC database after memory allocation, posing a risk of memory corruption in various Snapdragon products.
The Impact of CVE-2021-30349
The vulnerability can have a severe impact, with a CVSSv3.1 base score of 8.2 and high severity ratings across confidentiality, integrity, and availability aspects.
Technical Details of CVE-2021-30349
Let's explore the technical details of CVE-2021-30349 in this section.
Vulnerability Description
The issue stems from a flaw in the access control sequence post memory allocation, potentially leading to memory corruption in Snapdragon devices.
Affected Systems and Versions
Qualcomm products affected include Snapdragon Auto, Compute, Connectivity, Consumer IOT, Industrial IOT, Voice & Music, Wearables, Wired Infrastructure, and Networking.
Exploitation Mechanism
The vulnerability requires high privileges with a local attack vector and no user interaction, making it crucial to address promptly.
Mitigation and Prevention
In this section, we will discuss the steps to mitigate and prevent exploitation of CVE-2021-30349.
Immediate Steps to Take
Users are advised to apply patches provided by Qualcomm promptly and follow security best practices to reduce the risk of exploitation.
Long-Term Security Practices
Implementing robust access control mechanisms and regular security updates can enhance the overall security posture and mitigate such risks in the long term.
Patching and Updates
Regularly check for security bulletins from Qualcomm and apply patches as soon as they are released to ensure protection against known vulnerabilities.