CVE-2019-18936 Explained : Impact and Mitigation

UniValue library versions before 1.0.5 contain a vulnerability in the UniValue::read() function, allowing attackers to disrupt class functioning by providing specific input data.

Understanding CVE-2019-18936

The UniValue library vulnerability can lead to a denial of service attack by causing internal data inconsistency.

What is CVE-2019-18936?

The vulnerability in UniValue::read() function in UniValue library versions before 1.0.5
Attackers can exploit this flaw to disrupt class functionality

The Impact of CVE-2019-18936

Attackers can trigger errors leading to denial of service
Internal data can reach an inconsistent state

Technical Details of CVE-2019-18936

The technical aspects of the vulnerability in UniValue library.

Vulnerability Description

UniValue::read() function vulnerability
Allows attackers to cause denial of service

Affected Systems and Versions

UniValue library versions before 1.0.5

Exploitation Mechanism

Attackers provide input data triggering errors
Errors disrupt class functioning

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2019-18936.

Immediate Steps to Take

Update UniValue library to version 1.0.5
Monitor for any unusual class behavior

Long-Term Security Practices

Regularly update software libraries
Implement input validation mechanisms

Patching and Updates

Apply patches provided by UniValue library