CVE-2018-11855 : What You Need to Know

Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, and Snapdragon Mobile are affected by a potential buffer overflow issue when using the SCP11 sample OCE code without modifications. This vulnerability impacts various versions of Qualcomm products.

Understanding CVE-2018-11855

This CVE identifies a buffer overflow vulnerability in Qualcomm products due to the use of specific OCE code without customization.

What is CVE-2018-11855?

CVE-2018-11855 highlights the risk of buffer overflow when transmitting a CAPDU in multiple Qualcomm product versions.

The Impact of CVE-2018-11855

The vulnerability could allow attackers to exploit the buffer overflow issue, potentially leading to unauthorized access or system crashes.

Technical Details of CVE-2018-11855

Qualcomm products are susceptible to a buffer overflow vulnerability when utilizing specific OCE code.

Vulnerability Description

The issue arises from using the SCP11 sample OCE code without alterations, resulting in a buffer overflow during CAPDU transmission.

Affected Systems and Versions

Products: Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile
Versions: MDM9607, MDM9650, MDM9655, MSM8996AU, SD 210/SD 212/SD 205, SD 410/12, SD 636, SD 820, SD 820A, SD 835, SD 8CX, SDA660, SDM630, SDM660

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to trigger a buffer overflow by sending specific data packets.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigate the risks associated with CVE-2018-11855.

Immediate Steps to Take

Avoid using the SCP11 sample OCE code without proper customization.
Monitor network traffic for any suspicious activities.
Apply security patches provided by Qualcomm.

Long-Term Security Practices

Regularly update software and firmware to the latest versions.
Conduct security assessments and penetration testing to identify vulnerabilities.
Educate users on secure coding practices and potential threats.

Patching and Updates

Qualcomm may release patches to address the buffer overflow vulnerability. Ensure timely installation of these updates to enhance system security.