CVE-2016-4070

HIGH

PHP < 5.5.34, 5.6.x < 5.6.20, 7.x < 7.0.5 - Denial of Service via Integer Overflow in php_raw_url_encode

Title source: llm
STIX 2.1

Description

Integer overflow in the php_raw_url_encode function in ext/standard/url.c in PHP before 5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5 allows remote attackers to cause a denial of service (application crash) via a long string to the rawurlencode function. NOTE: the vendor says "Not sure if this qualifies as security issue (probably not).

References (18)

Core 18
Core References
Vendor Advisory x_refsource_confirm
http://www.php.net/ChangeLog-7.php
Vendor Advisory x_refsource_confirm
http://www.php.net/ChangeLog-5.php
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2952-1
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT206567
Vendor Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2016-2750.html
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2016/dsa-3560
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2952-2
Mailing List vendor-advisory x_refsource_apple
http://lists.apple.com/archives/security-announce/2016/May/msg00004.html
Exploit x_refsource_confirm
https://bugs.php.net/bug.php?id=71798
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/85801
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/04/24/1

Scores

CVSS v3 7.5
EPSS 0.0647
EPSS Percentile 91.2%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-189
Status published
Products (26)
php/php 5.6.0 alpha1 (9 CPE variants)
php/php 5.6.1
php/php 5.6.2
php/php 5.6.3
php/php 5.6.4
php/php 5.6.5
php/php 5.6.6
php/php 5.6.7
php/php 5.6.8
php/php 5.6.9
... and 16 more
Published May 20, 2016
Tracked Since Feb 18, 2026