Cyber Risks · Cisco Talos

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

Summary: Talos disclosed three remote code execution vulnerabilities in NASA's CFITSIO library version 3.42, a C and Fortran library for reading and writing FITS astronomical data files. Crafted keyword-value pairs in a FITS image header trigger stack-based buffer overflows in the library's error handling, tracked as TALOS-2018-0529 through TALOS-2018-0531 and CVE-2018-3846 through CVE-2018-3849.

Key Takeaway: The flaw sits in error handling, so a malformed image header is enough to overflow a buffer that was never sized for it, and an attacker who delivers that image can potentially execute code. Snort rules 45697-45700 and 45701-45714 cover known exploitation attempts, but Talos notes additional rules may follow and current ones are subject to change.

Read the original at Cisco Talos ↗

Topics
Vulnerabilities & Patching
Mentions
CVE-2018-3846CVE-2018-3847CVE-2018-3848CVE-2018-3849
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