cnvd - cnvd-2015-07895

cnvd-2015-07895

Vulnerability from cnvd

Title: PCRE ‘pcre_exec’函数拒绝服务漏洞

Description:

PCRE（Perl Compatible Regular Expressions）是软件开发者Philip Hazel所研发的一个使用C语言编写的开源正则表达式函数库。

PCRE 8.38之前版本的‘pcre_exec’函数中存在安全漏洞，该漏洞源于程序未能正确处理带有‘\01’字符串的‘//’模式。远程攻击者可借助特制的正则表达式利用该漏洞造成拒绝服务（基于堆的缓冲区溢出）。

Severity: 高

Patch Name: PCRE ‘pcre_exec’函数拒绝服务漏洞的补丁

Patch Description:

PCRE（Perl Compatible Regular Expressions）是软件开发者Philip Hazel所研发的一个使用C语言编写的开源正则表达式函数库。

PCRE 8.38之前版本的‘pcre_exec’函数中存在安全漏洞，该漏洞源于程序未能正确处理带有‘\01’字符串的‘//’模式。远程攻击者可借助特制的正则表达式利用该漏洞造成拒绝服务（基于堆的缓冲区溢出）。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： http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup

Reference: https://blog.fuzzing-project.org/29-Heap-Overflow-in-PCRE.html

Impacted products

Name
PCRE PCRE <8.38

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-8380"
    }
  },
  "description": "PCRE\uff08Perl Compatible Regular Expressions\uff09\u662f\u8f6f\u4ef6\u5f00\u53d1\u8005Philip Hazel\u6240\u7814\u53d1\u7684\u4e00\u4e2a\u4f7f\u7528C\u8bed\u8a00\u7f16\u5199\u7684\u5f00\u6e90\u6b63\u5219\u8868\u8fbe\u5f0f\u51fd\u6570\u5e93\u3002\r\n\r\nPCRE 8.38\u4e4b\u524d\u7248\u672c\u7684\u2018pcre_exec\u2019\u51fd\u6570\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u5904\u7406\u5e26\u6709\u2018\\01\u2019\u5b57\u7b26\u4e32\u7684\u2018//\u2019\u6a21\u5f0f\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u57fa\u4e8e\u5806\u7684\u7f13\u51b2\u533a\u6ea2\u51fa\uff09\u3002",
  "discovererName": "LLVM fuzzer",
  "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\uff1a\r\nhttp://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07895",
  "openTime": "2015-12-03",
  "patchDescription": "PCRE\uff08Perl Compatible Regular Expressions\uff09\u662f\u8f6f\u4ef6\u5f00\u53d1\u8005Philip Hazel\u6240\u7814\u53d1\u7684\u4e00\u4e2a\u4f7f\u7528C\u8bed\u8a00\u7f16\u5199\u7684\u5f00\u6e90\u6b63\u5219\u8868\u8fbe\u5f0f\u51fd\u6570\u5e93\u3002\r\n\r\nPCRE 8.38\u4e4b\u524d\u7248\u672c\u7684\u2018pcre_exec\u2019\u51fd\u6570\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u5904\u7406\u5e26\u6709\u2018\\01\u2019\u5b57\u7b26\u4e32\u7684\u2018//\u2019\u6a21\u5f0f\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u57fa\u4e8e\u5806\u7684\u7f13\u51b2\u533a\u6ea2\u51fa\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": "PCRE \u2018pcre_exec\u2019\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "PCRE PCRE \u003c8.38"
  },
  "referenceLink": "https://blog.fuzzing-project.org/29-Heap-Overflow-in-PCRE.html",
  "serverity": "\u9ad8",
  "submitTime": "2015-12-02",
  "title": "PCRE \u2018pcre_exec\u2019\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2015-8380 (GCVE-0-2015-8380)

Vulnerability from cvelistv5

Published

2015-12-02 01:00

Modified

2024-08-06 08:13

Severity ?

CWE

Summary

The pcre_exec function in pcre_exec.c in PCRE before 8.38 mishandles a // pattern with a \01 string, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.

References

▼	URL	Tags
	http://www.openwall.com/lists/oss-security/2015/11/29/1	mailing-list, x_refsource_MLIST
	https://bugs.exim.org/show_bug.cgi?id=1637	x_refsource_CONFIRM
	https://blog.fuzzing-project.org/29-Heap-Overflow-in-PCRE.html	x_refsource_MISC
	http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173700.html	vendor-advisory, x_refsource_FEDORA
	http://www.securityfocus.com/bid/77695	vdb-entry, x_refsource_BID
	https://bto.bluecoat.com/security-advisory/sa128	x_refsource_CONFIRM
	http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup	x_refsource_CONFIRM
	https://security.gentoo.org/glsa/201607-02	vendor-advisory, x_refsource_GENTOO

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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