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CVE-2015-4021

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/phar/tar.c文件中的‘phar_parse_tarfile’函数存在安全漏洞，该漏洞源于程序没有验证文件名的第一个字符是否为‘’字符。远程攻击者可借助tar归档中特制的条目利用该漏洞造成拒绝服务（整数溢出和内存损坏）。以下版本受到影响：PHP 5.4.41之前版本，5.

AI Predicted 5.3 Difficulty: Moderate EPSS 21.26% · P97
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I. Basic Information for CVE-2015-4021

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The phar_parse_tarfile function in ext/phar/tar.c in PHP before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9 does not verify that the first character of a filename is different from the \0 character, which allows remote attackers to cause a denial of service (integer underflow and memory corruption) via a crafted entry in a tar archive.
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 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/phar/tar.c文件中的‘phar_parse_tarfile’函数存在安全漏洞，该漏洞源于程序没有验证文件名的第一个字符是否为‘’字符。远程攻击者可借助tar归档中特制的条目利用该漏洞造成拒绝服务（整数溢出和内存损坏）。以下版本受到影响：PHP 5.4.41之前版本，5.
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-2015-4021

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III. Intelligence Information for CVE-2015-4021

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Vendor Advisories for CVE-2015-4021 (10)

Mailing List Discussions for CVE-2015-4021 (4)

Other References for CVE-2015-4021 (3)

Same Patch Batch · n/a · 2015-06-09 · 26 CVEs total

CVE-2015-3436 Zarafa Collaboration Platform 后置链接漏洞
CVE-2015-4418 ZOHO NetFlow Analyzer 安全漏洞
CVE-2015-2961 ZOHO NetFlow Analyzer 跨站请求伪造漏洞
CVE-2015-2960 ZOHO NetFlow Analyzer 跨站脚本漏洞
CVE-2015-2959 ZOHO NetFlow Analyzer 安全漏洞
CVE-2014-9284 多款Buffalo路由器安全漏洞
CVE-2015-4427 Ektron Content Management System 跨站脚本漏洞
CVE-2015-4335 Redis 安全漏洞
CVE-2015-4109 WordPress Users Ultra插件SQL注入漏洞
CVE-2015-4080 Kankun Smart Socket设备和移动应用程序加密问题漏洞
CVE-2015-4010 WordPress Encrypted Contact Form插件跨站请求伪造漏洞
CVE-2015-3648 Montala Limited ResourceSpace 目录遍历漏洞
CVE-2015-3624 Ektron Content Management System 跨站请求伪造漏洞
CVE-2015-2783 PHP 安全漏洞
CVE-2014-7872 Comodo GeekBuddy 权限许可和访问控制漏洞
CVE-2015-3200 Lighttpd mod_auth模块权限许可和访问控制问题漏洞
CVE-2015-4148 PHP‘do_soap_call’函数输入验证漏洞
CVE-2015-4147 PHP‘SoapClient's __call()’函数代码注入漏洞
CVE-2015-4026 PHP pcntl_exec 安全漏洞
CVE-2015-4025 PHP 权限许可和访问控制漏洞

Showing top 20 of 26 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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Same vendor: n/a

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