CVE-2021-1943 : Security Advisory and Response

Qualcomm, Inc. has disclosed a vulnerability labeled CVE-2021-1943, affecting a wide range of products including Snapdragon Auto, Snapdragon Compute, and more. The vulnerability could lead to a buffer out of bound read due to improper validation of TBTT count and length while parsing the beacon response.

Understanding CVE-2021-1943

This section provides insights into the nature of the vulnerability and its potential impact.

What is CVE-2021-1943?

The vulnerability involves a possible buffer out of bound read resulting from improper validation of TBTT count and length during the parsing of the beacon response in various Qualcomm products.

The Impact of CVE-2021-1943

The vulnerability poses a high risk with a CVSS base score of 7.5, primarily affecting availability. It requires no special privileges for exploitation and has a network-based attack vector.

Technical Details of CVE-2021-1943

Delve into the technical aspects of the vulnerability and its implications.

Vulnerability Description

Improper validation of TBTT count and length can lead to a buffer out of bound read during beacon response parsing.

Affected Systems and Versions

The vulnerability impacts a vast array of Qualcomm products including APQ8053, IPQ5028, MSM8953, and more as listed in the vendor's security bulletin.

Exploitation Mechanism

Exploiting the vulnerability requires interaction with the network, showcasing low attack complexity.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-1943.

Immediate Steps to Take

Apply patches and security updates provided by Qualcomm to address the vulnerability promptly.

Long-Term Security Practices

Incorporate regular security updates and monitoring to safeguard against similar vulnerabilities proactively.

Patching and Updates

Continuously monitor for security advisories and apply patches as soon as they are released to maintain system integrity.