CVE-2020-36325 : What You Need to Know

An issue was discovered in Jansson through 2.13.1 due to a parsing error in json_loads, leading to an out-of-bounds read-access bug. The vendor notes that this occurs when a programmer fails to adhere to the API specification.

Understanding CVE-2020-36325

This CVE entry highlights a vulnerability in Jansson through version 2.13.1 that can result in an out-of-bounds read-access bug.

What is CVE-2020-36325?

The vulnerability stems from a parsing error in json_loads within Jansson, potentially allowing unauthorized read access beyond the intended boundaries.

The Impact of CVE-2020-36325

The vulnerability could be exploited by malicious actors to read sensitive information or execute arbitrary code, compromising the security and integrity of the system.

Technical Details of CVE-2020-36325

This section delves into the technical aspects of the CVE.

Vulnerability Description

The issue arises from a parsing error in json_loads, leading to an out-of-bounds read-access bug in Jansson versions up to 2.13.1.

Affected Systems and Versions

Product: Jansson
Vendor: N/A
Versions affected: All versions up to 2.13.1

Exploitation Mechanism

The vulnerability can be exploited when a programmer fails to follow the API specification, allowing attackers to manipulate JSON data to trigger the out-of-bounds read-access bug.

Mitigation and Prevention

Protecting systems from CVE-2020-36325 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Jansson to the latest patched version to mitigate the vulnerability.
Ensure programmers adhere strictly to the API specifications to prevent exploitation.

Long-Term Security Practices

Regularly monitor and audit JSON parsing functions for vulnerabilities.
Implement secure coding practices to prevent similar parsing errors in the future.
Educate developers on secure coding practices and the importance of following API specifications.

Patching and Updates

Stay informed about security updates and patches released by Jansson.
Apply patches promptly to ensure the system is protected against known vulnerabilities.