Vulnerability-Lookup

CNVD-2018-19510

Vulnerability from cnvd - Published: 2018-09-20

Title

Apache SpamAssassin拒绝服务漏洞

Description

Apache SpamAssassin是美国阿帕奇（Apache）公司的一个邮件过滤程序与API，能够有效防止邮件遭受垃圾邮件的骚扰。 Apache SpamAssassin存在拒绝服务漏洞。攻击者可利用漏洞造成拒绝服务。

Severity

中

Patch Name

Apache SpamAssassin拒绝服务漏洞的补丁

Patch Description

Apache SpamAssassin是美国阿帕奇（Apache）公司的一个邮件过滤程序与API，能够有效防止邮件遭受垃圾邮件的骚扰。 Apache SpamAssassin存在拒绝服务漏洞。攻击者可利用漏洞造成拒绝服务。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

厂商已发布了漏洞修复程序，请及时关注更新： https://bugzilla.redhat.com/show_bug.cgi?id=1629521

Reference

https://www.securityfocus.com/bid/105347

Impacted products

Name
Apache SpamAssassin <3.4.2

Show details on source website

JSON

To clipboard

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    "bid": {
      "bidNumber": "105347"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-15705",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15705"
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  "discovererName": "Apache",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://bugzilla.redhat.com/show_bug.cgi?id=1629521",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-19510",
  "openTime": "2018-09-20",
  "patchDescription": "Apache SpamAssassin\u662f\u7f8e\u56fd\u963f\u5e15\u5947\uff08Apache\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u90ae\u4ef6\u8fc7\u6ee4\u7a0b\u5e8f\u4e0eAPI\uff0c\u80fd\u591f\u6709\u6548\u9632\u6b62\u90ae\u4ef6\u906d\u53d7\u5783\u573e\u90ae\u4ef6\u7684\u9a9a\u6270\u3002\r\n\r\nApache SpamAssassin\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\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": "Apache SpamAssassin\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Apache SpamAssassin \u003c3.4.2"
  },
  "referenceLink": "https://www.securityfocus.com/bid/105347",
  "serverity": "\u4e2d",
  "submitTime": "2018-09-20",
  "title": "Apache SpamAssassin\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2017-15705 (GCVE-0-2017-15705)

Vulnerability from cvelistv5 – Published: 2018-09-17 14:00 – Updated: 2024-09-16 23:15

Summary

A denial of service vulnerability was identified that exists in Apache SpamAssassin before 3.4.2. The vulnerability arises with certain unclosed tags in emails that cause markup to be handled incorrectly leading to scan timeouts. In Apache SpamAssassin, using HTML::Parser, we setup an object and hook into the begin and end tag event handlers In both cases, the "open" event is immediately followed by a "close" event - even if the tag *does not* close in the HTML being parsed. Because of this, we are missing the "text" event to deal with the object normally. This can cause carefully crafted emails that might take more scan time than expected leading to a Denial of Service. The issue is possibly a bug or design decision in HTML::Parser that specifically impacts the way Apache SpamAssassin uses the module with poorly formed html. The exploit has been seen in the wild but not believed to have been purposefully part of a Denial of Service attempt. We are concerned that there may be attempts to abuse the vulnerability in the future.

Severity

No CVSS data available.

CWE

Denial of Service

Assigner

apache mitre root

References

8 references

URL	Tags
https://usn.ubuntu.com/3811-2/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3811-1/	vendor-advisoryx_refsource_UBUNTU
https://security.gentoo.org/glsa/201812-07	vendor-advisoryx_refsource_GENTOO
https://lists.apache.org/thread.html/7f6a16bc0fd0…	mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2018:2916	vendor-advisoryx_refsource_REDHAT
http://www.securityfocus.com/bid/105347	vdb-entryx_refsource_BID
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache SpamAssassin	Affected: all modern versions before 3.4.2

Date Public

2018-09-16 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.

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.

Action not permitted

CNVD-2018-19510

CVE-2017-15705 (GCVE-0-2017-15705)

Tags

Sightings

Nomenclature

Related by attack behaviour