CVE-2021-35104 : Exploit Details and Defense Strategies
Learn about CVE-2021-35104, a buffer overflow vulnerability in Qualcomm products due to improper parsing of headers while playing FLAC audio clips. Understand the impact, affected systems, and mitigation strategies.
This CVE describes a possible buffer overflow vulnerability in various Qualcomm products, which could be exploited due to improper parsing of headers while playing a FLAC audio clip in multiple Qualcomm product lines.
Understanding CVE-2021-35104
In this section, we will delve into the details of CVE-2021-35104.
What is CVE-2021-35104?
The vulnerability involves a potential buffer overflow issue triggered by incorrect header parsing during the playback of FLAC audio in a range of Qualcomm products.
The Impact of CVE-2021-35104
The impact of this vulnerability is critical, with a CVSS v3.1 base score of 9.8. It could lead to high confidentiality, integrity, and availability impact without the need for privileges.
Technical Details of CVE-2021-35104
Let's explore the technical aspects of CVE-2021-35104.
Vulnerability Description
The vulnerability arises from a buffer overflow situation caused by improper handling of headers when processing FLAC audio files on affected Qualcomm devices.
Affected Systems and Versions
A wide spectrum of Qualcomm products across various categories like Snapdragon Auto, Snapdragon Compute, and Snapdragon Wearables are impacted by this vulnerability, highlighting the extensive reach of the issue.
Exploitation Mechanism
The vulnerability could be exploited by playing a specially crafted FLAC audio clip to trigger the buffer overflow condition, potentially leading to a security compromise.
Mitigation and Prevention
Discover the necessary steps to mitigate and prevent the exploitation of CVE-2021-35104.
Immediate Steps to Take
Users are advised to apply patches and updates provided by Qualcomm to address the vulnerability promptly. Additionally, users should avoid playing untrusted FLAC audio files on affected devices.
Long-Term Security Practices
Implementing strong security practices, such as regular software updates, network segmentation, and user awareness programs, can enhance the overall security posture against similar vulnerabilities.
Patching and Updates
Stay informed about security bulletins and updates from Qualcomm for guidance on patching vulnerable products.