Vulnerability-Lookup

CNVD-2017-38212

Vulnerability from cnvd - Published: 2017-12-27

Title

Exim拒绝服务漏洞

Description

Exim是英国剑桥大学开发的一个运行于Unix系统中的开源消息传送代理（MTA），它主要负责邮件的路由、转发和投递。 Exim 4.88版本和4.89版本中的SMTP守护进程的receive.c文件的‘receive_msg’函数存在安全漏洞。远程攻击者可利用该漏洞造成拒绝服务（无限循坏和栈耗尽）。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://lists.exim.org/lurker/splash/index.html

Reference

https://nvd.nist.gov/vuln/detail/CVE-2017-16944 https://bugs.exim.org/show_bug.cgi?id=2201

Impacted products

Name
['Exim Exim 4.88', 'Exim Exim 4.89']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-16944"
    }
  },
  "description": "Exim\u662f\u82f1\u56fd\u5251\u6865\u5927\u5b66\u5f00\u53d1\u7684\u4e00\u4e2a\u8fd0\u884c\u4e8eUnix\u7cfb\u7edf\u4e2d\u7684\u5f00\u6e90\u6d88\u606f\u4f20\u9001\u4ee3\u7406\uff08MTA\uff09\uff0c\u5b83\u4e3b\u8981\u8d1f\u8d23\u90ae\u4ef6\u7684\u8def\u7531\u3001\u8f6c\u53d1\u548c\u6295\u9012\u3002\r\n\r\nExim 4.88\u7248\u672c\u548c4.89\u7248\u672c\u4e2d\u7684SMTP\u5b88\u62a4\u8fdb\u7a0b\u7684receive.c\u6587\u4ef6\u7684\u2018receive_msg\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u65e0\u9650\u5faa\u574f\u548c\u6808\u8017\u5c3d\uff09\u3002",
  "discovererName": "Phil Pennock",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://lists.exim.org/lurker/splash/index.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-38212",
  "openTime": "2017-12-27",
  "products": {
    "product": [
      "Exim Exim 4.88",
      "Exim Exim 4.89"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2017-16944\r\nhttps://bugs.exim.org/show_bug.cgi?id=2201",
  "serverity": "\u4e2d",
  "submitTime": "2017-11-27",
  "title": "Exim\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2017-16944 (GCVE-0-2017-16944)

Vulnerability from cvelistv5 – Published: 2017-11-25 17:00 – Updated: 2024-08-05 20:43

Summary

The receive_msg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to cause a denial of service (infinite loop and stack exhaustion) via vectors involving BDAT commands and an improper check for a '.' character signifying the end of the content, related to the bdat_getc function.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

9 references

URL	Tags
https://lists.exim.org/lurker/message/20171125.03…	x_refsource_MISC
http://openwall.com/lists/oss-security/2017/11/25/3	x_refsource_MISC
https://bugs.exim.org/show_bug.cgi?id=2201	x_refsource_MISC
http://openwall.com/lists/oss-security/2017/11/25/1	x_refsource_MISC
http://www.securitytracker.com/id/1039873	vdb-entryx_refsource_SECTRACK
http://openwall.com/lists/oss-security/2017/11/25/2	x_refsource_MISC
https://www.debian.org/security/2017/dsa-4053	vendor-advisoryx_refsource_DEBIAN
https://www.exploit-db.com/exploits/43184/	exploitx_refsource_EXPLOIT-DB
http://www.openwall.com/lists/oss-security/2021/05/04/7	mailing-listx_refsource_MLIST

Date Public

2017-11-25 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

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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-2017-38212

CVE-2017-16944 (GCVE-0-2017-16944)

Tags

Sightings

Nomenclature

Related by attack behaviour