CVE-2019-2025 : What You Need to Know

A use-after-free vulnerability in the binder_thread_read function of binder.c in the Android kernel could lead to local privilege escalation without additional execution privileges.

Understanding CVE-2019-2025

This CVE involves a vulnerability in the Android kernel that could allow an attacker to escalate privileges locally without needing extra execution privileges.

What is CVE-2019-2025?

This CVE identifies a use-after-free flaw in the binder_thread_read function of binder.c within the Android kernel. The vulnerability could potentially enable a local attacker to escalate privileges within the kernel without requiring additional execution privileges. Exploitation of this vulnerability does not necessitate user interaction.

The Impact of CVE-2019-2025

The vulnerability poses a risk of local privilege escalation within the Android kernel, potentially allowing attackers to gain elevated privileges without needing additional execution rights.

Technical Details of CVE-2019-2025

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability stems from inadequate locking in the binder_thread_read function of binder.c, leading to a use-after-free scenario that could be exploited for privilege escalation within the Android kernel.

Affected Systems and Versions

Affected Product: Android
Affected Version: Android kernel

Exploitation Mechanism

The vulnerability can be exploited by leveraging the inadequate locking in the binder_thread_read function, allowing attackers to manipulate memory and potentially escalate privileges within the Android kernel.

Mitigation and Prevention

Protecting systems from CVE-2019-2025 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Monitor vendor communications for updates and advisories regarding this vulnerability.

Long-Term Security Practices

Implement the principle of least privilege to restrict user access rights.
Regularly update and patch systems to mitigate known vulnerabilities.
Conduct security assessments and audits to identify and address potential weaknesses.
Employ intrusion detection systems to monitor and detect suspicious activities.
Educate users on security best practices to prevent exploitation of vulnerabilities.

Patching and Updates

Ensure that the affected systems are updated with the latest security patches and fixes to address the vulnerability effectively.