CVE-2020-11145 : What You Need to Know

A divide by zero issue can occur in various Qualcomm Snapdragon products due to improper validation of certain header serial numbers.

Understanding CVE-2020-11145

This CVE pertains to a specific vulnerability affecting multiple Qualcomm Snapdragon products.

What is CVE-2020-11145?

The vulnerability involves a divide by zero issue that arises during the update of delta extension headers due to inadequate validation of master and extension header serial numbers.

The Impact of CVE-2020-11145

The vulnerability could potentially be exploited by attackers to cause denial of service or other malicious activities on affected devices.

Technical Details of CVE-2020-11145

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability stems from a divide by zero issue occurring while updating delta extension headers due to improper validation of master and extension header serial numbers.

Affected Systems and Versions

Vendor: Qualcomm, Inc.
Products: Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
Versions: APQ8009, APQ8009W, APQ8017, APQ8037, and many more (extensive list provided)

Exploitation Mechanism

The vulnerability can be exploited by manipulating the validation of specific serial numbers, leading to a divide by zero issue.

Mitigation and Prevention

Steps to address and prevent the CVE from being exploited.

Immediate Steps to Take

Apply patches and updates provided by Qualcomm promptly.
Monitor vendor communications for security advisories and follow recommended actions.
Implement network security measures to mitigate potential exploitation.

Long-Term Security Practices

Regularly update firmware and software to ensure the latest security patches are in place.
Conduct security assessments and audits to identify and address vulnerabilities proactively.

Patching and Updates

Qualcomm has released patches addressing the vulnerability; ensure all affected systems are updated with the latest patches to mitigate the risk of exploitation.