CVE-2016-4344

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

Integer overflow in the xml_utf8_encode function in ext/xml/xml.c in PHP before 7.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a long argument to the utf8_encode function, leading to a heap-based buffer overflow.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-190

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/04/28/2Mailing List, Third Party Advisory
https://bugs.php.net/bug.php?id=71637Exploit, Issue Tracking, Patch, Vendor Advisory
http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/04/28/2Mailing List, Third Party Advisory
https://bugs.php.net/bug.php?id=71637Exploit, Issue Tracking, Patch, Vendor Advisory

Timeline

Published: May 22, 2016
Last modified: Jun 17, 2026
NVD status: Modified

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