CVE-2018-1000873 : Security Advisory and Response

Fasterxml Jackson version prior to 2.9.8 has a vulnerability in the Jackson-Modules-Java8 component that can lead to a denial-of-service (DoS) attack when deserializing malicious input with excessively large values in the nanoseconds field of a time value. The issue has been addressed in version 2.9.8.

Understanding CVE-2018-1000873

This CVE involves an improper input validation vulnerability in Fasterxml Jackson.

What is CVE-2018-1000873?

The vulnerability in the Jackson-Modules-Java8 component of Fasterxml Jackson version prior to 2.9.8 can result in a DoS attack when processing malicious input with large nanoseconds values.

The Impact of CVE-2018-1000873

The vulnerability can lead to a DoS attack by exploiting the improper input validation in the affected component.

Technical Details of CVE-2018-1000873

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in Fasterxml Jackson version prior to 2.9.8 allows for a DoS attack through improper input validation in the Jackson-Modules-Java8 component.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Versions affected: n/a

Exploitation Mechanism

The vulnerability can be exploited by deserializing malicious input with excessively large values in the nanoseconds field of a time value.

Mitigation and Prevention

Here are the steps to mitigate and prevent exploitation of CVE-2018-1000873.

Immediate Steps to Take

Update Fasterxml Jackson to version 2.9.8 or newer to address the vulnerability.
Avoid deserializing untrusted or malicious input.

Long-Term Security Practices

Regularly update software components to the latest versions.
Implement input validation mechanisms to prevent similar vulnerabilities.

Patching and Updates

Ensure timely patching of software components to address known vulnerabilities.