CVE-2018-11843 : Security Advisory and Response
Learn about CVE-2018-11843 affecting Android for MSM, Firefox OS for MSM, and QRD Android devices using the Linux kernel. Find mitigation steps and prevention measures.
Android for MSM, Firefox OS for MSM, and QRD Android devices using the Linux kernel are susceptible to a use-after-free vulnerability due to a missing check in the WMA response handler.
Understanding CVE-2018-11843
This CVE identifies a critical security issue in Qualcomm devices running specific Android releases.
What is CVE-2018-11843?
This CVE pertains to a use-after-free vulnerability in Android for MSM, Firefox OS for MSM, and QRD Android devices that utilize the Linux kernel. The vulnerability arises from a lack of validation in the WMA response handler.
The Impact of CVE-2018-11843
The vulnerability could allow an attacker to execute arbitrary code or cause a denial of service by exploiting the use-after-free issue in WLAN.
Technical Details of CVE-2018-11843
Qualcomm devices running certain Android releases are affected by this vulnerability.
Vulnerability Description
The vulnerability in CVE-2018-11843 is a use-after-free issue in WLAN due to the absence of a return value check in the WMA response handler.
Affected Systems and Versions
- Product: Android for MSM, Firefox OS for MSM, QRD Android
- Vendor: Qualcomm, Inc.
- Versions: All Android releases from CAF using the Linux kernel
Exploitation Mechanism
The vulnerability can be exploited by an attacker to trigger a use-after-free condition in WLAN, potentially leading to arbitrary code execution or denial of service.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent exploitation of this vulnerability.
Immediate Steps to Take
- Apply security patches provided by Qualcomm promptly.
- Monitor official sources for updates and advisories regarding this vulnerability.
Long-Term Security Practices
- Regularly update device firmware and software to mitigate known vulnerabilities.
- Implement network security measures to detect and prevent unauthorized access.
Patching and Updates
- Ensure that all Qualcomm devices running affected Android releases receive the latest security patches.