cnvd - cnvd-2017-05493

cnvd-2017-05493

Vulnerability from cnvd

Title: PHP拒绝服务漏洞（CNVD-2017-05493）

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。该语言支持多重语法、支持多数据库及操作系统和支持C、C++进行程序扩展等。

PHP 7.1.2版本中Zend/zend_operators.c文件中的_zval_get_long_func_ex函数存在拒绝服务漏洞，允许攻击者通过在PHP脚本中的“ticks =”来引发拒绝服务（NULL指针解除引用和应用程序崩溃）。

Severity: 中

Patch Name: PHP拒绝服务漏洞（CNVD-2017-05493）的补丁

Patch Description:

PHP 7.1.2版本中Zend/zend_operators.c文件中的_zval_get_long_func_ex函数存在拒绝服务漏洞，允许攻击者通过在PHP脚本中的“ticks =”来引发拒绝服务（NULL指针解除引用和应用程序崩溃）。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接: https://github.com/php/php-src/pull/2396

Reference: https://bugs.php.net/bug.php?id=74146

Impacted products

Name
PHP PHP 7.1.2

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-6441",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6441"
    }
  },
  "description": "PHP\uff08PHP\uff1aHypertext Preprocessor\uff0cPHP\uff1a\u8d85\u6587\u672c\u9884\u5904\u7406\u5668\uff09\u662fPHP Group\u548c\u5f00\u653e\u6e90\u4ee3\u7801\u793e\u533a\u5171\u540c\u7ef4\u62a4\u7684\u4e00\u79cd\u5f00\u6e90\u7684\u901a\u7528\u8ba1\u7b97\u673a\u811a\u672c\u8bed\u8a00\u3002\u8be5\u8bed\u8a00\u652f\u6301\u591a\u91cd\u8bed\u6cd5\u3001\u652f\u6301\u591a\u6570\u636e\u5e93\u53ca\u64cd\u4f5c\u7cfb\u7edf\u548c\u652f\u6301C\u3001C++\u8fdb\u884c\u7a0b\u5e8f\u6269\u5c55\u7b49\u3002 \r\n\r\nPHP 7.1.2\u7248\u672c\u4e2dZend/zend_operators.c\u6587\u4ef6\u4e2d\u7684_zval_get_long_func_ex\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u5141\u8bb8\u653b\u51fb\u8005\u901a\u8fc7\u5728PHP\u811a\u672c\u4e2d\u7684\u201cticks =\u201d\u6765\u5f15\u53d1\u62d2\u7edd\u670d\u52a1\uff08NULL\u6307\u9488\u89e3\u9664\u5f15\u7528\u548c\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff09\u3002",
  "discovererName": "unknown",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5:\r\nhttps://github.com/php/php-src/pull/2396",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-05493",
  "openTime": "2017-04-27",
  "patchDescription": "PHP\uff08PHP\uff1aHypertext Preprocessor\uff0cPHP\uff1a\u8d85\u6587\u672c\u9884\u5904\u7406\u5668\uff09\u662fPHP Group\u548c\u5f00\u653e\u6e90\u4ee3\u7801\u793e\u533a\u5171\u540c\u7ef4\u62a4\u7684\u4e00\u79cd\u5f00\u6e90\u7684\u901a\u7528\u8ba1\u7b97\u673a\u811a\u672c\u8bed\u8a00\u3002\u8be5\u8bed\u8a00\u652f\u6301\u591a\u91cd\u8bed\u6cd5\u3001\u652f\u6301\u591a\u6570\u636e\u5e93\u53ca\u64cd\u4f5c\u7cfb\u7edf\u548c\u652f\u6301C\u3001C++\u8fdb\u884c\u7a0b\u5e8f\u6269\u5c55\u7b49\u3002 \r\n\r\nPHP 7.1.2\u7248\u672c\u4e2dZend/zend_operators.c\u6587\u4ef6\u4e2d\u7684_zval_get_long_func_ex\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u5141\u8bb8\u653b\u51fb\u8005\u901a\u8fc7\u5728PHP\u811a\u672c\u4e2d\u7684\u201cticks =\u201d\u6765\u5f15\u53d1\u62d2\u7edd\u670d\u52a1\uff08NULL\u6307\u9488\u89e3\u9664\u5f15\u7528\u548c\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff09\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "PHP\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-05493\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "PHP PHP 7.1.2"
  },
  "referenceLink": "https://bugs.php.net/bug.php?id=74146",
  "serverity": "\u4e2d",
  "submitTime": "2017-04-05",
  "title": "PHP\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-05493\uff09"
}

CVE-2017-6441 (GCVE-0-2017-6441)

Vulnerability from cvelistv5

Published

2017-04-03 05:44

Modified

2024-08-05 15:25

Severity ?

CWE

Summary

The _zval_get_long_func_ex in Zend/zend_operators.c in PHP 7.1.2 allows attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted use of "declare(ticks=" in a PHP script. NOTE: the vendor disputes the classification of this as a vulnerability, stating "Please do not request CVEs for ordinary bugs. CVEs are relevant for security issues only.

References

▼	URL	Tags
	https://bugs.php.net/bug.php?id=74146	x_refsource_MISC
	https://github.com/php/php-src/pull/2396	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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