CVEs-PoC/2021/CVE-2021-44142.md

### [CVE-2021-44142](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44142)
![](https://img.shields.io/static/v1?label=Product&message=Samba&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%204.13.17%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-125%20Out-of-bounds%20Read&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-787%20Out-of-bounds%20Write&color=brighgreen)

### Description

The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.

### POC

#### Reference
- https://bugzilla.samba.org/show_bug.cgi?id=14914

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/NaInSec/CVE-PoC-in-GitHub
- https://github.com/SYRTI/POC_to_review
- https://github.com/WhooAmii/POC_to_review
- https://github.com/backloop-biz/CVE_checks
- https://github.com/gudyrmik/CVE-2021-44142
- https://github.com/horizon3ai/CVE-2021-44142
- https://github.com/hrsman/Samba-CVE-2021-44142
- https://github.com/nomi-sec/PoC-in-GitHub
- https://github.com/stalker3343/diplom
- https://github.com/trhacknon/Pocingit
- https://github.com/zecool/cve