CVE-2016-4342: ext/phar/phar_object.c in PHP before 5.5.32, 5.6.x before 5.6.18, and 7.x before 7.0.3 mishandles zero-leng...

Security readout for executives and security teams

Old PHP versions can mishandle specially formed archive files, potentially crashing the PHP process or corrupting heap memory. The clearest business risk is service disruption when vulnerable PHP code processes untrusted TAR, ZIP, or PHAR archives. Exposure is most likely in legacy PHP deployments that parse or inspect user-supplied TAR, ZIP, or PHAR archives. Systems on supported distro PHP packages may have vendor backports; version strings alone may not prove vulnerability. Treat as a legacy-platform hygiene issue with operational impact. Prioritize remediation where public-facing or partner-facing PHP services accept archive files, especially if running unsupported PHP branches. Mitigation focus: Upgrade PHP beyond 5.5.32, 5.6.18, or 7.0.3 as applicable.; Apply relevant vendor security updates from Red Hat, openSUSE, HPE, or PHP.; Restrict untrusted archive uploads or processing until patched..

Prepared

Jun 13, 2026, 14:22 UTC (UTC+00:00)

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