NULL Pointer Dereference Affecting php-ldap package, versions *


Severity

Recommended
0.0
low
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
2.78% (91st percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about NULL Pointer Dereference vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-RHEL7-PHPLDAP-1338193
  • published26 Jul 2021
  • disclosed9 Jun 2015

Introduced: 9 Jun 2015

CVE-2015-6838  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 php-ldap.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php-ldap package and not the php-ldap package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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.

CVSS Scores

version 3.1