CVE-2021-36373 (Medium) Detected In Ant-1.6.5.jar

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Introduction

The Apache Software Foundation provides support for the Apache community of open-source software projects. The Apache projects are characterized by a collaborative, consensus-based development process, an open and pragmatic software license, and a desire to create high-quality software that leads the way in its field. In this article, we will focus on the CVE-2021-36373 vulnerability detected in the ant-1.6.5.jar library, which is a part of the Apache Ant project.

CVE-2021-36373 - Medium Severity Vulnerability

The CVE-2021-36373 vulnerability is a medium severity vulnerability that affects the Apache Ant project. The vulnerability occurs when reading a specially crafted TAR archive, which can lead to an out-of-memory error, even for small inputs. This can be used to disrupt builds using Apache Ant.

Vulnerable Library - ant-1.6.5.jar

The vulnerable library is ant-1.6.5.jar, which is a part of the Apache Ant project. The library is used for building and managing projects. The vulnerability occurs when the library is used to read a specially crafted TAR archive.

Dependency Hierarchy

The dependency hierarchy for the vulnerable library is as follows:

  • ant-1.6.5.jar (Vulnerable Library)

Found in HEAD Commit and Base Branch

The vulnerability was found in the HEAD commit and the base branch main.

Vulnerability Details

The vulnerability occurs when reading a specially crafted TAR archive, which can lead to an out-of-memory error, even for small inputs. This can be used to disrupt builds using Apache Ant. The vulnerability affects Apache Ant prior to 1.9.16 and 1.10.11.

Publish Date and URL

The publish date for the vulnerability is 2021-07-14, and the URL for the vulnerability is https://www.mend.io/vulnerability-database/CVE-2021-36373.

CVSS 3 Score Details (5.5)

The CVSS 3 score for the vulnerability is 5.5. The base score metrics are as follows:

  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

Suggested Fix

The suggested fix for the vulnerability is to upgrade the version of the ant library to 1.9.16 or 1.10.11.

Type: Upgrade version Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36373 Release Date: 2021-07-14 Fix Resolution: org.apache.ant:ant:1.9.16,1.10.11

Conclusion

In conclusion, the CVE-2021-36373 vulnerability detected in the ant-1.6.5.jar library is a medium severity vulnerability that affects the Apache Ant project. The vulnerability occurs when reading a specially crafted TAR archive, which can lead to an out-of-memory error, even for small inputs. The suggested fix for the vulnerability is to upgrade the version of the ant library to 1.9.16 or 1.10.11.

Recommendations

To prevent the vulnerability, it is recommended to upgrade the version of the ant library to 1.9.16 or 1.10.11. Additionally, it is recommended to regularly update and patch dependencies to prevent similar vulnerabilities in the future.

Automated Fix PR

To automate the fix for the vulnerability, you can check the box to open an automated fix PR.

Q1: What is the CVE-2021-36373 vulnerability?

A1: The CVE-2021-36373 vulnerability is a medium severity vulnerability that affects the Apache Ant project. The vulnerability occurs when reading a specially crafted TAR archive, which can lead to an out-of-memory error, even for small inputs.

Q2: What is the impact of the CVE-2021-36373 vulnerability?

A2: The impact of the CVE-2021-36373 vulnerability is that it can be used to disrupt builds using Apache Ant. This can lead to a denial-of-service (DoS) attack, where the system becomes unresponsive due to the out-of-memory error.

Q3: What is the CVSS 3 score for the CVE-2021-36373 vulnerability?

A3: The CVSS 3 score for the CVE-2021-36373 vulnerability is 5.5. This score indicates that the vulnerability has a medium severity level.

Q4: What is the suggested fix for the CVE-2021-36373 vulnerability?

A4: The suggested fix for the CVE-2021-36373 vulnerability is to upgrade the version of the ant library to 1.9.16 or 1.10.11.

Q5: Why is it important to upgrade the ant library to 1.9.16 or 1.10.11?

A5: It is important to upgrade the ant library to 1.9.16 or 1.10.11 because these versions contain the fix for the CVE-2021-36373 vulnerability. Upgrading to these versions will prevent the vulnerability from being exploited.

Q6: How can I check if my system is affected by the CVE-2021-36373 vulnerability?

A6: You can check if your system is affected by the CVE-2021-36373 vulnerability by running a vulnerability scanner or by manually checking the version of the ant library installed on your system.

Q7: What are the dependencies of the ant-1.6.5.jar library?

A7: The dependencies of the ant-1.6.5.jar library are not explicitly listed in the provided information. However, it is likely that the library has dependencies on other libraries, such as the Apache Commons library.

Q8: Can I use the ant-1.6.5.jar library in production?

A8: It is not recommended to use the ant-1.6.5.jar library in production due to the presence of the CVE-2021-36373 vulnerability. Upgrading to a fixed version of the library is recommended.

Q9: How can I prevent similar vulnerabilities in the future?

A9: You can prevent similar vulnerabilities in the future by regularly updating and patching dependencies, using a vulnerability scanner to identify potential vulnerabilities, and following best practices for secure coding.

Q10: What is the recommended course of action for resolving the CVE-2021-36373 vulnerability?

A10: The recommended course of action for the CVE-2021-36373 vulnerability is to upgrade the version of the ant library to 1.9.16 or 1.10.11 and to regularly update and patch dependencies to prevent similar vulnerabilities in the future.