CVE-2020-3673 : Security Advisory and Response

A buffer overflow vulnerability in multiple Qualcomm Snapdragon products could allow attackers to execute arbitrary code or cause a denial of service.

Understanding CVE-2020-3673

This CVE involves an improper validation of array index in HLOS data, potentially leading to a buffer overflow.

What is CVE-2020-3673?

This vulnerability occurs during SIP message packet processing when storing values in an array without proper index length validation.

The Impact of CVE-2020-3673

The vulnerability could be exploited by attackers to execute arbitrary code or trigger a denial of service on affected devices.

Technical Details of CVE-2020-3673

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The issue arises due to a lack of validation for the index length when storing values in an array during SIP message packet processing.

Affected Systems and Versions

Products: Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables
Versions: Agatti, APQ8053, APQ8096AU, APQ8098, Bitra, Kamorta, MSM8905, MSM8909W, MSM8917, MSM8940, MSM8953, MSM8996AU, Nicobar, QCA6390, QCA6574AU, QCM2150, QCS605, QM215, Rennell, SA6155P, SA8155P, Saipan, SDA660, SDM429, SDM429W, SDM439, SDM450, SDM630, SDM632, SDM636, SDM660, SDM670, SDM710, SDM845, SM6150, SM7150, SM8150, SM8250, SXR1130, SXR2130

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to execute arbitrary code or launch a denial of service attack by manipulating SIP message packet processing.

Mitigation and Prevention

To address CVE-2020-3673, users and organizations should take immediate and long-term security measures.

Immediate Steps to Take

Apply patches provided by Qualcomm to fix the vulnerability.
Monitor for any unusual activity on the affected devices.

Long-Term Security Practices

Regularly update software and firmware on devices to ensure they are protected against known vulnerabilities.
Implement network security measures to detect and prevent potential attacks.

Patching and Updates

Qualcomm has released patches to address the vulnerability. Users should promptly apply these updates to mitigate the risk of exploitation.