CVE-2016-3177: Multiple use-after-free and double-free vulnerabilities in gifcolor.c in GIFLIB 5.1.2 have unspecified impa...

Security readout for executives and security teams

GIFLIB 5.1.2 has reported memory-management bugs in gifcolor.c, including use-after-free and double-free conditions. The public record does not state the impact, attack path, or whether exploitation has occurred. Organizations should prioritize this where GIFLIB 5.1.2 processes untrusted GIF files. Exposure is most plausible where GIFLIB 5.1.2 is installed and the gifcolor-related code or tooling can process GIF input, especially untrusted image files. The sources do not identify downstream products or deployments. Use standard vulnerability management priority unless the organization processes untrusted GIFs with GIFLIB 5.1.2. Escalate if exposed image-processing services rely on the affected code, because impact is unspecified but memory corruption is involved. Mitigation focus: Inventory systems and packages for GIFLIB 5.1.2.; Check GIFLIB or operating-system vendor guidance for fixed or backported builds.; Limit untrusted GIF processing through affected gifcolor functionality until remediated..

Prepared

Jun 13, 2026, 12:51 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.