CVE-2020-25644 : Exploit Details and Defense Strategies
Learn about CVE-2020-25644, a memory leak flaw in WildFly OpenSSL versions prior to 1.1.3.Final, potentially leading to denial of service attacks. Find mitigation steps and updates here.
A memory leak flaw in WildFly OpenSSL may lead to a denial of service attack.
Understanding CVE-2020-25644
What is CVE-2020-25644?
CVE-2020-25644 is a memory leak vulnerability in WildFly OpenSSL versions prior to 1.1.3.Final. This flaw occurs when removing an HTTP session, potentially allowing an attacker to cause an Out-of-Memory (OOM) condition, leading to a denial of service.
The Impact of CVE-2020-25644
The highest threat posed by this vulnerability is to system availability.
Technical Details of CVE-2020-25644
Vulnerability Description
The vulnerability involves a memory leak in WildFly OpenSSL, affecting versions before 1.1.3.Final.
Affected Systems and Versions
- Vendor: n/a
- Product: wildfly-openssl
- Affected Versions: before wildfly-openssl 1.1.3.Final
Exploitation Mechanism
The flaw can be exploited by an attacker to trigger an OOM condition by removing an HTTP session.
Mitigation and Prevention
Immediate Steps to Take
- Update WildFly OpenSSL to version 1.1.3.Final or later.
- Monitor system resources for any signs of memory exhaustion.
Long-Term Security Practices
- Regularly update and patch software to mitigate known vulnerabilities.
- Implement proper resource management practices to prevent memory leaks.
Patching and Updates
Apply patches and updates provided by the vendor to address the memory leak vulnerability in WildFly OpenSSL.