CVE-2019-25072 : Vulnerability Insights and Analysis

CVE-2019-25072 involves uncontrolled resource consumption in github.com/tendermint/tendermint, potentially leading to denial of service attacks.

Understanding CVE-2019-25072

What is CVE-2019-25072?

This CVE relates to a vulnerability in github.com/tendermint/tendermint that allows a malevolent server to exhaust a client's system resources by forcing the use of a large amount of resources, potentially enabling denial of service attacks.

The Impact of CVE-2019-25072

The vulnerability can be exploited to launch denial of service attacks, causing disruption and potential downtime for affected systems.

Technical Details of CVE-2019-25072

Vulnerability Description

The issue arises from the lack of restrictions on response body sizes and support for Gzip compression in request bodies.

Affected Systems and Versions

Vendor: github.com/tendermint/tendermint
Affected Product: github.com/tendermint/tendermint/rpc/lib/client
Versions Affected: 0 to 0.31.1

Exploitation Mechanism

Malevolent servers can exploit this vulnerability to exhaust client resources, leading to denial of service attacks.

Mitigation and Prevention

Immediate Steps to Take

Implement network-level controls to limit resource consumption
Monitor system resources for unusual spikes in usage

Long-Term Security Practices

Regularly update software and dependencies to patch vulnerabilities
Conduct security assessments and audits to identify and mitigate potential risks

Patching and Updates

Apply patches provided by github.com/tendermint/tendermint to address the vulnerability