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CVE-2015-6838

Quick assessment

Affected
n/a n/a
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PHP（PHP：Hypertext Preprocessor，PHP：超文本预处理器）是PHP Group和开放源代码社区共同维护的一种开源的通用计算机脚本语言。该语言主要用于Web开发，支持多种数据库及操作系统。 PHP的ext/xsl/xsltprocessor.c文件中的‘xsl_ext_function_php’函数存在安全漏洞，该漏洞源于当程序使用libxml2 2.9.2之前版本时，在主要参数循环后执行释放操作时没有考虑空的valuePop返回值。远程攻击者可借助特制的XML文档利用该漏洞造成

AI Predicted 5.3 Difficulty: Easy EPSS 7.28% · P94

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2015-6838

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
PHP‘xsltprocessor.c’拒绝服务漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PHP（PHP：Hypertext Preprocessor，PHP：超文本预处理器）是PHP Group和开放源代码社区共同维护的一种开源的通用计算机脚本语言。该语言主要用于Web开发，支持多种数据库及操作系统。 PHP的ext/xsl/xsltprocessor.c文件中的‘xsl_ext_function_php’函数存在安全漏洞，该漏洞源于当程序使用libxml2 2.9.2之前版本时，在主要参数循环后执行释放操作时没有考虑空的valuePop返回值。远程攻击者可借助特制的XML文档利用该漏洞造成
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2015-6838

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III. Intelligence Information for CVE-2015-6838

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Vendor Advisories for CVE-2015-6838 (4)

Other References for CVE-2015-6838 (2)

Same Patch Batch · n/a · 2016-05-16 · 27 CVEs total

CVE-2015-4642 PHP 操作系统命令注入漏洞
CVE-2016-3185 PHP 安全漏洞
CVE-2016-2554 PHP 基于栈的缓冲区溢出漏洞
CVE-2015-8874 PHP GD组件拒绝服务漏洞
CVE-2015-8873 PHP 远程拒绝服务漏洞
CVE-2015-8838 PHP 安全漏洞
CVE-2015-8835 PHP 安全漏洞
CVE-2015-6837 PHP‘valuePop()’函数拒绝服务漏洞
CVE-2015-6835 PHP‘php_var_unserialize()’函数安全漏洞
CVE-2015-6834 PHP 释放后重用漏洞
CVE-2015-5589 PHP 远程拒绝服务漏洞
CVE-2015-4644 PHP PostgreSQL扩展拒绝服务漏洞
CVE-2015-4643 PHP‘ftp_genlist()’函数整数溢出漏洞
CVE-2014-0236 PHP Fileinfo组件拒绝服务漏洞
CVE-2015-4605 PHP Fileinfo组件file 安全漏洞
CVE-2015-4604 PHP Fileinfo组件file 安全漏洞
CVE-2015-4603 PHP‘exception::getTraceAsString’远程任意代码执行漏洞
CVE-2015-4602 PHP‘incomplete_class.c’安全漏洞
CVE-2015-4601 PHP 安全漏洞
CVE-2015-4600 PHP 安全漏洞

Showing top 20 of 27 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

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