CVE-2015-6838
HIGHPHP < 5.4.45, 5.5.x < 5.5.29, 5.6.x < 5.6.13 - Denial of Service via NULL Pointer Dereference in xsl_ext_function_php
Title source: llmDescription
The xsl_ext_function_php function in ext/xsl/xsltprocessor.c in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13, when libxml2 before 2.9.2 is used, does not consider the possibility of a NULL valuePop return value before proceeding with a free operation after the principal argument loop, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted XML document, a different vulnerability than CVE-2015-6837.
References (6)
Core 6
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1033548
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/76733
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2015/dsa-3358
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201606-10
Various Sources x_refsource_confirm
https://bugs.php.net/bug.php?id=69782
Various Sources x_refsource_confirm
http://php.net/ChangeLog-5.php
Scores
CVSS v3
7.5
EPSS
0.0380
EPSS Percentile
88.2%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
Status
published
Products (30)
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 20 more
Published
May 16, 2016
Tracked Since
Feb 18, 2026