CVEs-PoC/2019/CVE-2019-11365.md

CVE-2019-11365

Description

An issue was discovered in atftpd in atftp 0.7.1. A remote attacker may send a crafted packet triggering a stack-based buffer overflow due to an insecurely implemented strncpy call. The vulnerability is triggered by sending an error packet of 3 bytes or fewer. There are multiple instances of this vulnerable strncpy pattern within the code base, specifically within tftpd_file.c, tftp_file.c, tftpd_mtftp.c, and tftp_mtftp.c.

POC

Reference

• https://pulsesecurity.co.nz/advisories/atftpd-multiple-vulnerabilities
• https://seclists.org/bugtraq/2019/May/16
• https://sourceforge.net/p/atftp/code/ci/abed7d245d8e8bdfeab24f9f7f55a52c3140f96b/

Github

• https://github.com/abhirag/static-analyzer-c-rules