CVE-2020-3675 : What You Need to Know
Learn about CVE-2020-3675 affecting Qualcomm Snapdragon products. Discover the impact, affected systems, and mitigation strategies for this integer underflow vulnerability.
Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking by Qualcomm, Inc. are affected by a potential integer underflow vulnerability.
Understanding CVE-2020-3675
This CVE involves a buffer over-read issue in WLAN.
What is CVE-2020-3675?
The vulnerability relates to a potential integer underflow when parsing Service Info and IPv6 link-local TLVs within the NDPE attribute in various Qualcomm products.
The Impact of CVE-2020-3675
The vulnerability could allow an attacker to exploit the underflow issue, leading to potential security breaches and unauthorized access to sensitive information.
Technical Details of CVE-2020-3675
The following technical details provide insight into the vulnerability:
Vulnerability Description
The vulnerability involves a potential integer underflow while parsing specific TLVs in Qualcomm products.
Affected Systems and Versions
- Affected Products: Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking
- Affected Versions: IPQ5018, IPQ6018, IPQ8074, Kamorta, Nicobar, QCA6390, QCN7605, QCS404, QCS405, Rennell, SA415M, Saipan, SC7180, SC8180X, SDX55, SM6150, SM7150, SM8150, SM8250
Exploitation Mechanism
The vulnerability can be exploited through malicious manipulation of Service Info and IPv6 link-local TLVs within the NDPE attribute, potentially leading to security risks.
Mitigation and Prevention
To address CVE-2020-3675, consider the following mitigation strategies:
Immediate Steps to Take
- Apply patches and updates provided by Qualcomm promptly.
- Monitor vendor communications for security advisories and follow recommended actions.
Long-Term Security Practices
- Regularly update and patch all software and firmware to mitigate potential vulnerabilities.
- Implement network segmentation and access controls to limit the impact of security breaches.
Patching and Updates
- Stay informed about security bulletins and updates from Qualcomm.
- Ensure timely application of patches to secure the affected systems and versions.