CVE-2018-11273 : Security Advisory and Response

Android releases based on CAF and Linux kernel may experience a double free scenario due to 'voice_svc_dev' resource mismanagement.

Understanding CVE-2018-11273

This CVE involves a vulnerability in Android releases using CAF and the Linux kernel, potentially leading to a double free scenario.

What is CVE-2018-11273?

'voice_svc_dev' resource managed by the device in Android releases from CAF may face deallocation issues, causing a double free scenario.

The Impact of CVE-2018-11273

A double free scenario can lead to memory corruption and potentially be exploited by attackers to execute arbitrary code.

Technical Details of CVE-2018-11273

This section provides detailed technical information about the vulnerability.

Vulnerability Description

Error 'cdev_alloc_err' can trigger deallocation of 'voice_svc_dev' and related resources using 'device_destroy', resulting in a double free scenario.

Affected Systems and Versions

Android releases (Android for MSM, Firefox OS for MSM, QRD Android) based on CAF and Linux kernel.

Exploitation Mechanism

Attackers can exploit the double free scenario to corrupt memory and potentially execute malicious code.

Mitigation and Prevention

Protect your systems from CVE-2018-11273 with these mitigation strategies.

Immediate Steps to Take

Apply patches provided by the vendor to address the vulnerability.
Monitor for any unusual system behavior that could indicate exploitation.

Long-Term Security Practices

Regularly update your software and firmware to prevent known vulnerabilities.
Implement secure coding practices to reduce the likelihood of memory-related vulnerabilities.

Patching and Updates

Stay informed about security bulletins and updates from the vendor to apply patches promptly.