CVE-2014-3597: PHP

Medium severity, CVSS 6.8. EPSS: 15.4% chance of exploitation in the next 30 days.

Multiple buffer overflows in the php_parserr function in ext/standard/dns.c in PHP before 5.4.32 and 5.5.x before 5.5.16 allow remote DNS servers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted DNS record, related to the dns_get_record function and the dn_expand function. NOTE: this issue exists because of an incomplete fix for CVE-2014-4049.

Affected products

• PHP PHP: up to and including 5.4.31; version 5.4.0 only; version 5.4.1 only; version 5.4.2 only; version 5.4.3 only; version 5.4.4 only; …

Published 2014-08-23. Last modified 2026-06-17.