CVE-2019-9470 : What You Need to Know

A vulnerability in the dma_sblk_start function in the abc-pcie.c file of the Android kernel could allow for an out-of-bounds write, potentially leading to a local escalation of privilege without user interaction.

Understanding CVE-2019-9470

This CVE pertains to a specific vulnerability in the Android kernel that could be exploited for privilege escalation.

What is CVE-2019-9470?

The vulnerability lies in the dma_sblk_start function in the abc-pcie.c file, where an out-of-bounds write can occur without proper bounds checking. This flaw could enable a local attacker to escalate privileges without requiring user interaction.

The Impact of CVE-2019-9470

The vulnerability could result in a local escalation of privilege, necessitating System execution privileges. Exploiting this issue does not require any user interaction.

Technical Details of CVE-2019-9470

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in dma_sblk_start of abc-pcie.c allows for an out-of-bounds write due to a missing bounds check, potentially leading to privilege escalation.

Affected Systems and Versions

Affected Product: Android
Affected Version: Android kernel

Exploitation Mechanism

The vulnerability can be exploited by triggering the out-of-bounds write in the dma_sblk_start function of the abc-pcie.c file.

Mitigation and Prevention

Protecting systems from CVE-2019-9470 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches promptly to mitigate the vulnerability.
Monitor vendor updates for patches related to the Android kernel.

Long-Term Security Practices

Implement the principle of least privilege to limit potential damage from privilege escalation attacks.
Regularly update and patch systems to address known vulnerabilities.
Conduct security assessments and audits to identify and remediate potential weaknesses.
Educate users and administrators on secure practices to prevent exploitation.
Employ intrusion detection and prevention systems to monitor and block malicious activities.

Patching and Updates

Regularly check for security bulletins and updates from Android to address vulnerabilities like the one identified in CVE-2019-9470.