Vulnerability-Lookup

CNVD-2015-07895

Vulnerability from cnvd - Published: 2015-12-03

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

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

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{
  "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 – Updated: 2024-08-06 08:13

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.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

8 references

URL	Tags
http://www.openwall.com/lists/oss-security/2015/11/29/1	mailing-listx_refsource_MLIST
https://bugs.exim.org/show_bug.cgi?id=1637	x_refsource_CONFIRM
https://blog.fuzzing-project.org/29-Heap-Overflow…	x_refsource_MISC
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://www.securityfocus.com/bid/77695	vdb-entryx_refsource_BID
https://bto.bluecoat.com/security-advisory/sa128	x_refsource_CONFIRM
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?vie…	x_refsource_CONFIRM
https://security.gentoo.org/glsa/201607-02	vendor-advisoryx_refsource_GENTOO

Date Public

2015-11-23 00:00

Show details on NVD website

JSON

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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.

Detection rules are retrieved from Rulezet.

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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.