Vulnerability Spotlight: TALOS-2018-0529-531 – Multiple Vulnerabilities in NASA CFITSIO library

Vulnerabilities discovered by Tyler Bohan from Talos

Overview
Talos is disclosing three remote code execution vulnerabilities in the NASA CFITSIO library. CFITSIO is a library of C and Fortran subroutines for reading and writing data files in the Flexible Image Transport System (FITS) data format. FITS is a standard format endorsed by both NASA and the International Astronomical Union for astronomical data.

Specially crafted images parsed via the library can cause a stack-based buffer overflow, overwriting arbitrary data. An attacker can deliver a malicious FIT image to trigger this vulnerability, and potentially gain the ability to execute code.

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