CVE-2017-17497
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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 5.7.0版本中的clean.c文件的‘prvTidyTidyMetaCharset’函数存在安全漏洞，该漏洞源于程序在没有检测新值的情况下，更改‘children of the head’处理功能中的currentNode变量。攻击者可利用该漏洞造成拒绝服务（段错误）。
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I. Basic Information for CVE-2017-17497
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Tidy 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability 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 5.7.0版本中的clean.c文件的‘prvTidyTidyMetaCharset’函数存在安全漏洞，该漏洞源于程序在没有检测新值的情况下，更改‘children of the head’处理功能中的currentNode变量。攻击者可利用该漏洞造成拒绝服务（段错误）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
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II. Public POCs for CVE-2017-17497
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2017-17497 (1)
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https://github.com/htacg/tidy-html5/issues/656 x_refsource_CONFIRM
Same Patch Batch · n/a · 2017-12-10 · 3 CVEs total
| CVE-2017-16241 | 多款AMAG产品访问控制错误漏洞 | |
| CVE-2017-17484 | International Components for Unicode 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2017-17497
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