The bcpowmod function in ext/bcmath/bcmath.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 modifies certain data structures without considering whether they are copies of the _zero_, _one_, or _two_ global variable, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted call.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: debian

Published: 2016-05-22T01:00:00

Updated: 2024-08-06T00:32:25.613Z

Reserved: 2016-05-05T00:00:00

Link: CVE-2016-4538

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2016-05-22T01:59:22.933

Modified: 2023-11-07T02:32:39.800

Link: CVE-2016-4538

cve-icon Redhat

Severity : Low

Publid Date: 2016-04-24T00:00:00Z

Links: CVE-2016-4538 - Bugzilla