CVE-2020-11275 : What You Need to Know

A buffer over-read vulnerability affecting multiple Qualcomm Snapdragon products.

Understanding CVE-2020-11275

What is CVE-2020-11275?

The vulnerability involves a possible buffer over-read during the parsing of quiet IE in Rx beacon frames due to inadequate length checks in received beacons across various Qualcomm Snapdragon products.

The Impact of CVE-2020-11275

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

Technical Details of CVE-2020-11275

Vulnerability Description

The issue stems from improper length validation of Information Elements (IEs) in received beacons, leading to a buffer over-read in WLAN.

Affected Systems and Versions

Products: Snapdragon Auto, Compute, Connectivity, Consumer Electronics Connectivity, Consumer IOT, Industrial IOT, IoT, Mobile, Voice & Music, Wired Infrastructure, and Networking
Versions: A wide range of Qualcomm Snapdragon products including APQ series, IPQ series, MDM series, MSM series, PM series, and more.

Exploitation Mechanism

Attackers can craft malicious beacon frames with specially crafted IEs to trigger the buffer over-read, potentially leading to unauthorized code execution or service disruption.

Mitigation and Prevention

Immediate Steps to Take

Apply patches provided by Qualcomm to address the vulnerability.
Monitor Qualcomm's security bulletins for updates and advisories.

Long-Term Security Practices

Regularly update firmware and software on affected devices.
Implement network segmentation and access controls to limit exposure.

Patching and Updates

Qualcomm has released patches to mitigate the vulnerability. Ensure timely application of these patches to safeguard the affected devices.