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CRITICAL · 9.8

CVE-2016-4344

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...

Vulnerability 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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
PhpPhp>= 7.0.0, < 7.0.4

Related Weaknesses (CWE)

CWE-190

References

FAQ

What is CVE-2016-4344?

CVE-2016-4344 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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...

How severe is CVE-2016-4344?

CVE-2016-4344 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2016-4344?

Check the references section above for vendor advisories and patch information. Affected products include: Php Php.