CVE-2021-1963 : Security Advisory and Response
Understand the impact of CVE-2021-1963, a Qualcomm Snapdragon vulnerability affecting various products. Learn about the risks, affected systems, and mitigation strategies.
This article provides details about CVE-2021-1963, a vulnerability found in multiple Qualcomm products, potentially leading to a use-after-free issue due to the lack of validation in the filter table rule count in the IPA driver.
Understanding CVE-2021-1963
CVE-2021-1963 affects a wide range of Qualcomm products, including Snapdragon Auto, Compute, Connectivity, Consumer IOT, Industrial IOT, Mobile, Voice & Music, and Wearables.
What is CVE-2021-1963?
The vulnerability stems from inadequate validation for the rule count in the filter table within the IPA driver, possibly resulting in a use-after-free scenario.
The Impact of CVE-2021-1963
With a CVSS base score of 6.7, this vulnerability poses a medium severity risk. An attacker could exploit this issue to cause high impact on confidentiality, integrity, and availability, especially on systems with high privileges.
Technical Details of CVE-2021-1963
The vulnerability is categorized as an integer overflow or wraparound issue possibly occurring in the modem of affected Qualcomm products.
Vulnerability Description
The vulnerability arises due to the lack of validation for the rule count in the filter table in the IPA driver.
Affected Systems and Versions
The vulnerability impacts various Qualcomm products encompassing a wide array of versions across different product lines.
Exploitation Mechanism
Exploiting this vulnerability requires a high level of privileges. An attacker could potentially leverage this flaw to execute arbitrary code or disrupt system operations.
Mitigation and Prevention
It is crucial for organizations and users to take immediate and long-term security measures to mitigate the risks associated with CVE-2021-1963.
Immediate Steps to Take
Organizations should deploy security patches provided by Qualcomm promptly to address this vulnerability. Additionally, it is advisable to monitor for any suspicious activities on the affected systems.
Long-Term Security Practices
Enhancing overall system security by implementing stringent access controls, conducting regular security assessments, and staying informed about potential vulnerabilities is vital in preventing such security issues.
Patching and Updates
Regularly checking for and applying firmware or software updates from Qualcomm is essential to safeguard systems from known vulnerabilities.