Vulnerability-Lookup

CNVD-2017-03451

Vulnerability from cnvd - Published: 2017-03-27

Title

PCRE2和PCRE拒绝服务漏洞（CNVD-2017-03451）

Description

PCRE（Perl Compatible Regular Expressions）和PCRE2都是软件开发者Philip Hazel所研发的产品。前者是一个使用C语言编写的开源正则表达式函数库，后者是一个用于修改PCRE的API。 PCRE2 10.23版本中的libpcre2和PCRE 8.40版本中的libpcre1存在拒绝服务漏洞。远程攻击者可利用该漏洞造成拒绝服务（段错误和应用程序崩溃）。

Severity

中

Patch Name

PCRE2和PCRE拒绝服务漏洞（CNVD-2017-03451）的补丁

Patch Description

Formal description

用户可联系供应商获得补丁信息： http://www.pcre.org/

Reference

https://vcs.pcre.org/pcre/code/trunk/pcre_ucd.c?r1=1490&amp;r2=1688&amp;sortby=date

Impacted products

Name
['PCRE PCRE2 10.23', 'PCRE PCRE 8.40']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-7186",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7186"
    }
  },
  "description": "PCRE\uff08Perl Compatible Regular Expressions\uff09\u548cPCRE2\u90fd\u662f\u8f6f\u4ef6\u5f00\u53d1\u8005Philip Hazel\u6240\u7814\u53d1\u7684\u4ea7\u54c1\u3002\u524d\u8005\u662f\u4e00\u4e2a\u4f7f\u7528C\u8bed\u8a00\u7f16\u5199\u7684\u5f00\u6e90\u6b63\u5219\u8868\u8fbe\u5f0f\u51fd\u6570\u5e93\uff0c\u540e\u8005\u662f\u4e00\u4e2a\u7528\u4e8e\u4fee\u6539PCRE\u7684API\u3002\r\n\r\nPCRE2 10.23\u7248\u672c\u4e2d\u7684libpcre2\u548cPCRE 8.40\u7248\u672c\u4e2d\u7684libpcre1\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u6bb5\u9519\u8bef\u548c\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff09\u3002",
  "discovererName": "Agostino Sarubbo",
  "formalWay": "\u7528\u6237\u53ef\u8054\u7cfb\u4f9b\u5e94\u5546\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttp://www.pcre.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-03451",
  "openTime": "2017-03-27",
  "patchDescription": "PCRE\uff08Perl Compatible Regular Expressions\uff09\u548cPCRE2\u90fd\u662f\u8f6f\u4ef6\u5f00\u53d1\u8005Philip Hazel\u6240\u7814\u53d1\u7684\u4ea7\u54c1\u3002\u524d\u8005\u662f\u4e00\u4e2a\u4f7f\u7528C\u8bed\u8a00\u7f16\u5199\u7684\u5f00\u6e90\u6b63\u5219\u8868\u8fbe\u5f0f\u51fd\u6570\u5e93\uff0c\u540e\u8005\u662f\u4e00\u4e2a\u7528\u4e8e\u4fee\u6539PCRE\u7684API\u3002\r\n\r\nPCRE2 10.23\u7248\u672c\u4e2d\u7684libpcre2\u548cPCRE 8.40\u7248\u672c\u4e2d\u7684libpcre1\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u6bb5\u9519\u8bef\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": "PCRE2\u548cPCRE\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-03451\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "PCRE PCRE2 10.23",
      "PCRE PCRE 8.40"
    ]
  },
  "referenceLink": "https://vcs.pcre.org/pcre/code/trunk/pcre_ucd.c?r1=1490\u0026amp;amp;r2=1688\u0026amp;amp;sortby=date",
  "serverity": "\u4e2d",
  "submitTime": "2017-03-21",
  "title": "PCRE2\u548cPCRE\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-03451\uff09"
}

CVE-2017-7186 (GCVE-0-2017-7186)

Vulnerability from cvelistv5 – Published: 2017-03-20 00:00 – Updated: 2024-08-05 15:56

Summary

libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation violation for read access, and application crash) by triggering an invalid Unicode property lookup.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

10 references

URL	Tags
https://bugs.exim.org/show_bug.cgi?id=2052	x_refsource_CONFIRM
https://security.gentoo.org/glsa/201710-09	vendor-advisoryx_refsource_GENTOO
https://vcs.pcre.org/pcre/code/trunk/pcre_interna…	x_refsource_CONFIRM
https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_i…	x_refsource_CONFIRM
https://vcs.pcre.org/pcre/code/trunk/pcre_ucd.c?r…	x_refsource_CONFIRM
http://www.securityfocus.com/bid/97030	vdb-entryx_refsource_BID
https://blogs.gentoo.org/ago/2017/03/14/libpcre-i…	x_refsource_MISC
https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_u…	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2018:2486	vendor-advisoryx_refsource_REDHAT
https://security.gentoo.org/glsa/201710-25	vendor-advisoryx_refsource_GENTOO

Date Public

2017-03-19 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Action not permitted

CNVD-2017-03451

CVE-2017-7186 (GCVE-0-2017-7186)

Tags

Sightings

Nomenclature

Related by attack behaviour