CVE-2016-5323: The _TIFFFax3fillruns function in libtiff before 4.0.6 allows remote attackers to cause a denial of service...

Security readout for executives and security teams

CVE-2016-5323 is a libtiff crash issue. A malicious TIFF image can trigger a divide-by-zero condition and crash software that processes it. The business risk is service disruption where TIFF files are accepted from users, customers, email, or automated workflows. Exposure is most likely in applications, servers, or batch jobs using libtiff before 4.0.6 to process untrusted TIFF images. Linux distributions may have backported fixes, so version validation should use vendor advisory status, not only upstream version strings. Handle as a reliability and availability issue, not as a confirmed breach indicator. Prioritize internet-facing or business-critical image-processing workflows first. If TIFF ingestion is rare or internal-only, normal patch cadence may be sufficient. Mitigation focus: Upgrade libtiff to 4.0.6 or a vendor-fixed package.; Apply relevant Debian, Gentoo, or openSUSE security updates where applicable.; Prioritize systems that process TIFF files from untrusted sources..

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.