Vulnerability-Lookup

CNVD-2018-00853

Vulnerability from cnvd - Published: 2018-01-12

Title

Tidy prvTidyTidyMetaCharset函数拒绝服务漏洞

Description

Tidy是美国万维网联盟（W3C）的研究员Dave Raggett所开发的一个用于纠正和清理HTML文件的错误及整齐排列代码（即缩排）的软件及函数库。 Tidy的clean.c的prvTidyTidyMetaCharset函数中存在拒绝服务漏洞。攻击者可利用此漏洞造成拒绝服务（分段错误）。

Severity

中

Patch Name

Tidy prvTidyTidyMetaCharset函数拒绝服务漏洞的补丁

Patch Description

Tidy是美国万维网联盟（W3C）的研究员Dave Raggett所开发的一个用于纠正和清理HTML文件的错误及整齐排列代码（即缩排）的软件及函数库。 Tidy的clean.c的prvTidyTidyMetaCharset函数中存在拒绝服务漏洞。攻击者可利用此漏洞造成拒绝服务（分段错误）。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://github.com/htacg/tidy-html5/issues/656

Reference

https://cxsecurity.com/cveshow/CVE-2017-17497/

Impacted products

Name
Tidy Tidy 5.7.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-17497",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17497"
    }
  },
  "description": "Tidy\u662f\u7f8e\u56fd\u4e07\u7ef4\u7f51\u8054\u76df\uff08W3C\uff09\u7684\u7814\u7a76\u5458Dave Raggett\u6240\u5f00\u53d1\u7684\u4e00\u4e2a\u7528\u4e8e\u7ea0\u6b63\u548c\u6e05\u7406HTML\u6587\u4ef6\u7684\u9519\u8bef\u53ca\u6574\u9f50\u6392\u5217\u4ee3\u7801\uff08\u5373\u7f29\u6392\uff09\u7684\u8f6f\u4ef6\u53ca\u51fd\u6570\u5e93\u3002\r\n\r\nTidy\u7684clean.c\u7684prvTidyTidyMetaCharset\u51fd\u6570\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5206\u6bb5\u9519\u8bef\uff09\u3002",
  "discovererName": "yngwei",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/htacg/tidy-html5/issues/656",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-00853",
  "openTime": "2018-01-12",
  "patchDescription": "Tidy\u662f\u7f8e\u56fd\u4e07\u7ef4\u7f51\u8054\u76df\uff08W3C\uff09\u7684\u7814\u7a76\u5458Dave Raggett\u6240\u5f00\u53d1\u7684\u4e00\u4e2a\u7528\u4e8e\u7ea0\u6b63\u548c\u6e05\u7406HTML\u6587\u4ef6\u7684\u9519\u8bef\u53ca\u6574\u9f50\u6392\u5217\u4ee3\u7801\uff08\u5373\u7f29\u6392\uff09\u7684\u8f6f\u4ef6\u53ca\u51fd\u6570\u5e93\u3002\r\n\r\nTidy\u7684clean.c\u7684prvTidyTidyMetaCharset\u51fd\u6570\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5206\u6bb5\u9519\u8bef\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": "Tidy prvTidyTidyMetaCharset\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Tidy Tidy 5.7.0"
  },
  "referenceLink": "https://cxsecurity.com/cveshow/CVE-2017-17497/",
  "serverity": "\u4e2d",
  "submitTime": "2017-12-11",
  "title": "Tidy prvTidyTidyMetaCharset\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2017-17497 (GCVE-0-2017-17497)

Vulnerability from cvelistv5 – Published: 2017-12-10 22:00 – Updated: 2024-08-05 20:51

Summary

In Tidy 5.7.0, the prvTidyTidyMetaCharset function in clean.c allows attackers to cause a denial of service (Segmentation Fault), because the currentNode variable in the "children of the head" processing feature is modified in the loop without validating the new value.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://github.com/htacg/tidy-html5/issues/656	x_refsource_CONFIRM

Date Public

2017-12-10 00:00

Show details on NVD website

JSON

To clipboard

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        ],
        "title": "CVE Program Container"
      }
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          "vendor": "n/a",
          "versions": [
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              "version": "n/a"
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      ],
      "datePublic": "2017-12-10T00:00:00.000Z",
      "descriptions": [
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          "lang": "en",
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        }
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        "dateUpdated": "2017-12-10T22:57:01.000Z",
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      "x_legacyV4Record": {
        "CVE_data_meta": {
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          "ID": "CVE-2017-17497",
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        "affects": {
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            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
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                      }
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                "vendor_name": "n/a"
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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.