cve/2021/CVE-2021-36373.md

### [CVE-2021-36373](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36373)
![](https://img.shields.io/static/v1?label=Product&message=Apache%20Ant&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=Apache%20Ant%201.10.x%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=Apache%20Ant%201.9.x%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-130%20Improper%20Handling%20of%20Length%20Parameter%20Inconsistency%20&color=brightgreen)

### Description

When reading a specially crafted TAR archive an Apache Ant build can be made to allocate large amounts of memory that finally leads to an out of memory error, even for small inputs. This can be used to disrupt builds using Apache Ant. Apache Ant prior to 1.9.16 and 1.10.11 were affected.

### POC

#### Reference
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://www.oracle.com/security-alerts/cpuoct2021.html

#### Github
No PoCs found on GitHub currently.