cve/2009/CVE-2009-4212.md

### [CVE-2009-4212](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4212)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5 (aka krb5) 1.3 through 1.6.3, and 1.7 before 1.7.1, allow remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code by providing ciphertext with a length that is too short to be valid.

### POC

#### Reference
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-004.txt

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