Critical severity · published May 22, 2016
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…
9.8
CVSS
5.2%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.2% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PH
PHP · PHP
7.0.0 before 7.0.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-4344
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-4344
Release Notes
http://php.net/ChangeLog-7.php
Mailing List
http://www.openwall.com/lists/oss-security/2016/04/28/2
Exploit
https://bugs.php.net/bug.php?id=71637
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