### [CVE-2011-4623](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4623)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)

### Description

Integer overflow in the rsCStrExtendBuf function in runtime/stringbuf.c in the imfile module in rsyslog 4.x before 4.6.6, 5.x before 5.7.4, and 6.x before 6.1.4 allows local users to cause a denial of service (daemon hang) via a large file, which triggers a heap-based buffer overflow.

### POC

#### Reference
- http://rsyslog.com/changelog-for-4-6-6-v4-stable/
- http://rsyslog.com/changelog-for-5-7-4-v5-beta/
- http://rsyslog.com/changelog-for-6-1-4-devel/

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/ehoffmann-cp/check_for_cve