Vulnerability-Lookup

CNVD-2015-02118

Vulnerability from cnvd - Published: 2015-04-01

Title

PCRE拒绝服务漏洞（CNVD-2015-02118）

Description

PCRE(Perl Compatible Regular Expressions)是一个Perl库，包括 perl 兼容的正则表达式库。 PCRE 8.36及更早版本存在拒绝服务漏洞，通过构造的正规表达式，远程攻击者利用此漏洞可造成栈耗尽，导致拒绝服务。

Severity

中

Formal description

目前没有详细的解决方案提供： http://www.exim.org/viewvc/pcre?view=revision&revision=1513

Reference

http://www.fortiguard.com/advisory/FG-VD-15-010/

Impacted products

Name
PCRE PCRE <=8.36

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-2327"
    }
  },
  "description": "PCRE(Perl Compatible Regular Expressions)\u662f\u4e00\u4e2aPerl\u5e93\uff0c\u5305\u62ec perl \u517c\u5bb9\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u5e93\u3002\r\n\r\nPCRE 8.36\u53ca\u66f4\u65e9\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u901a\u8fc7\u6784\u9020\u7684\u6b63\u89c4\u8868\u8fbe\u5f0f\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u5229\u7528\u6b64\u6f0f\u6d1e\u53ef\u9020\u6210\u6808\u8017\u5c3d\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "Kai Lu",
  "formalWay": "\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u89e3\u51b3\u65b9\u6848\u63d0\u4f9b\uff1a\r\nhttp://www.exim.org/viewvc/pcre?view=revision\u0026revision=1513",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-02118",
  "openTime": "2015-04-01",
  "products": {
    "product": "PCRE PCRE \u003c=8.36"
  },
  "referenceLink": "http://www.fortiguard.com/advisory/FG-VD-15-010/",
  "serverity": "\u4e2d",
  "submitTime": "2015-03-31",
  "title": "PCRE\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2015-02118\uff09"
}

CVE-2015-2327 (GCVE-0-2015-2327)

Vulnerability from cvelistv5 – Published: 2015-12-02 01:00 – Updated: 2024-08-06 05:10

Summary

PCRE before 8.36 mishandles the /(((a\2)|(a*)\g<-1>))*/ pattern and related patterns with certain internal recursive back references, which allows remote attackers to cause a denial of service (segmentation fault) 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

7 references

URL	Tags
http://www.openwall.com/lists/oss-security/2015/11/29/1	mailing-listx_refsource_MLIST
http://www.fortiguard.com/advisory/FG-VD-15-010/	x_refsource_MISC
http://www.securityfocus.com/bid/74924	vdb-entryx_refsource_BID
http://rhn.redhat.com/errata/RHSA-2016-2750.html	vendor-advisoryx_refsource_REDHAT
https://bugs.exim.org/show_bug.cgi?id=1503	x_refsource_CONFIRM
https://jira.mongodb.org/browse/SERVER-17252	x_refsource_CONFIRM
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?vie…	x_refsource_CONFIRM

Date Public

2015-11-23 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.

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.

Action not permitted

CNVD-2015-02118

CVE-2015-2327 (GCVE-0-2015-2327)

Tags

Sightings

Nomenclature

Related by attack behaviour