CVE-2020-11188 : Security Advisory and Response

Buffer over-read can happen while parsing received SDP values due to lack of NULL termination check on SDP in various Qualcomm Snapdragon products.

Understanding CVE-2020-11188

This CVE identifies a buffer over-read vulnerability in Qualcomm Snapdragon products that can occur during the parsing of SDP values.

What is CVE-2020-11188?

This vulnerability arises due to a missing NULL termination check on SDP, potentially leading to a buffer over-read scenario in multiple Qualcomm Snapdragon product lines.

The Impact of CVE-2020-11188

The vulnerability could be exploited by attackers to read beyond the allocated memory, potentially exposing sensitive information or causing a denial of service.

Technical Details of CVE-2020-11188

Qualcomm Snapdragon products are affected by a buffer over-read vulnerability during SDP value parsing.

Vulnerability Description

The issue stems from the absence of a NULL termination check on SDP, allowing for buffer over-read during data modem operations.

Affected Systems and Versions

Products: Snapdragon Auto, Compute, Connectivity, Consumer IOT, Industrial IOT, IoT, Mobile, Voice & Music, Wearables
Versions: APQ8009, APQ8009W, APQ8017, and many more

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating SDP values to trigger buffer over-read, potentially leading to information exposure or service disruption.

Mitigation and Prevention

Steps to address and prevent the CVE-2020-11188 vulnerability.

Immediate Steps to Take

Apply patches provided by Qualcomm promptly
Monitor for any unusual system behavior
Implement network segmentation to limit exposure

Long-Term Security Practices

Regularly update software and firmware on affected devices
Conduct security assessments and audits periodically

Patching and Updates

Qualcomm has released patches to address the vulnerability
Ensure all affected systems are updated with the latest patches