CVE-2017-18120

CVE-2017-18120 is a double-free vulnerability in the read_gif function of gifsicle version 1.90, specifically affecting the lcdf gifsicle product. A remote attacker can trigger this flaw by providing a maliciously crafted GIF file, leading to a denial-of-service or potentially other unspecified impacts. The vulnerability carries a high CVSS score of 7.8, indicating a significant risk due to its high impact on confidentiality, integrity, and availability, requiring user interaction (UI:R) for exploitation. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.