CVE-2022-26529 : Exploit Details and Defense Strategies
Learn about CVE-2022-26529 impacting Realtek Linux/Android Bluetooth Mesh SDK. An unauthenticated attacker can exploit a buffer overflow vulnerability to disrupt service. Take immediate steps to mitigate the risk.
Realtek Linux/Android Bluetooth Mesh SDK has a buffer overflow vulnerability that allows an unauthenticated attacker to disrupt service by causing a buffer overflow.
Understanding CVE-2022-26529
This CVE refers to a buffer overflow vulnerability in the Realtek Linux/Android Bluetooth Mesh SDK.
What is CVE-2022-26529?
The vulnerability in the Realtek Linux/Android Bluetooth Mesh SDK is caused by insufficient validation for segmented packets' link parameter. It can be exploited by an unauthenticated attacker in the adjacent network to trigger a buffer overflow.
The Impact of CVE-2022-26529
The impact of this vulnerability is rated as MEDIUM with a CVSS base score of 6.5. It poses a high availability impact but does not affect confidentiality or integrity. The attack complexity is LOW, and no user interaction or special privileges are required.
Technical Details of CVE-2022-26529
This section provides technical details about the vulnerability.
Vulnerability Description
The buffer overflow vulnerability in the Realtek Linux/Android Bluetooth Mesh SDK arises from insufficient validation for segmented packets' link parameter.
Affected Systems and Versions
The vulnerability affects the Realtek Linux/Android Bluetooth Mesh SDK with versions less than or equal to 4.17-4.17-20220127.
Exploitation Mechanism
An unauthenticated attacker in the adjacent network can exploit this vulnerability to cause a buffer overflow and disrupt service.
Mitigation and Prevention
Protecting systems from CVE-2022-26529 requires immediate action and long-term security practices.
Immediate Steps to Take
Immediately update the Realtek Linux/Android Bluetooth Mesh SDK to version 4.18-4.18-20220218 to mitigate the vulnerability.
Long-Term Security Practices
Regularly check for security updates, implement secure coding practices, and conduct security assessments to prevent similar vulnerabilities.
Patching and Updates
Stay informed about security patches and updates released by Realtek to address vulnerabilities like the buffer overflow in the Bluetooth Mesh SDK.