CVE-2023-47857 : Vulnerability Insights and Analysis
Learn about CVE-2023-47857, a Use After Free (UAF) vulnerability in OpenHarmony v3.2.2 allowing local attackers to crash the multimedia camera. Find mitigation steps here.
A detailed overview of the UAF vulnerability affecting multimedia camera in OpenHarmony v3.2.2 and prior versions.
Understanding CVE-2023-47857
This section provides insights into the vulnerability, its impact, technical details, and mitigation strategies.
What is CVE-2023-47857?
The CVE-2023-47857 vulnerability involves a memory corruption issue in OpenHarmony v3.2.2 and earlier versions. An attacker can exploit this vulnerability to crash the multimedia camera through modifying a released pointer.
The Impact of CVE-2023-47857
The vulnerability can be exploited by a local attacker to cause a crash in the multimedia camera, potentially leading to a denial of service (DoS) condition.
Technical Details of CVE-2023-47857
Below are the technical details associated with the CVE-2023-47857 vulnerability:
Vulnerability Description
The vulnerability allows a local attacker to crash the multimedia camera by manipulating a released pointer in OpenHarmony v3.2.2 and prior versions.
Affected Systems and Versions
OpenHarmony v3.2.2 and earlier versions are affected by this Use After Free (UAF) vulnerability in the multimedia camera.
Exploitation Mechanism
The attacker can exploit this vulnerability locally by modifying a released pointer, leading to a crash in the multimedia camera.
Mitigation and Prevention
It is crucial to take immediate action to address and prevent the CVE-2023-47857 vulnerability.
Immediate Steps to Take
- Update OpenHarmony to the latest version that includes a patch for the UAF vulnerability.
- Monitor and restrict access to critical system resources to prevent unauthorized exploitation.
Long-Term Security Practices
- Implement secure coding practices to avoid memory corruption issues like Use After Free vulnerabilities.
- Regularly update and patch software to mitigate known vulnerabilities.
Patching and Updates
Stay informed about security updates released by OpenHarmony and promptly apply patches to secure your systems against potential threats.