Denial of Service (DoS) Affecting c3p0:c3p0 package, versions [0,]


0.0
high
  • Exploit Maturity

    Proof of concept

  • Attack Complexity

    Low

  • Availability

    High

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  • snyk-id

    SNYK-JAVA-C3P0-461018

  • published

    22 Apr 2019

  • disclosed

    22 Apr 2019

  • credit

    Unknown

How to fix?

There is no fixed version for c3p0:c3p0.

Overview

c3p0:c3p0 is a lIbrary for augmenting traditional (DriverManager-based) JDBC drivers with JNDI-bindable DataSources, including DataSources that implement Connection and Statement Pooling, as described by the jdbc3 spec and jdbc2 std extension. Note: This library is no longer maintained and has migrated to the artifact "com.mchange:c3p0"

Affected versions of this package are vulnerable to Denial of Service (DoS) due to missing protections against recursive entity expansion when loading XML configurations.

Details

Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.

Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.

One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.

When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.

Two common types of DoS vulnerabilities:

  • High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.

  • Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm ws package