CVE-2021-20308
Quick assessment
Affected
n/a htmldoc
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.
HTMLDOC是一款能够将HTML和Markdown文件转换为EPUB、索引HTML、PostScript和PDF等格式文件的开源程序。 htmldoc 1.9.11 存在安全漏洞，该漏洞允许攻击者执行任意代码并导致拒绝服务。
Possible ATT&CK Techniques 3 AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing Application T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2021-20308
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Integer overflow in the htmldoc 1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service that is similar to CVE-2017-9181.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
HTMLDOC 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HTMLDOC是一款能够将HTML和Markdown文件转换为EPUB、索引HTML、PostScript和PDF等格式文件的开源程序。 htmldoc 1.9.11 存在安全漏洞，该漏洞允许攻击者执行任意代码并导致拒绝服务。
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 |
|---|---|---|---|---|
| - | htmldoc | htmldoc 1.9.11 and older | - |
|
II. Public POCs for CVE-2021-20308
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-20308 (1)
-
https://bugzilla.redhat.com/show_bug.cgi?id=1946289 x_refsource_MISC
Mailing List Discussions for CVE-2021-20308 (1)
Other References for CVE-2021-20308 (1)
-
https://github.com/michaelrsweet/htmldoc/issues/423 x_refsource_MISC
Same Patch Batch · n/a · 2021-04-05 · 15 CVEs total
| CVE-2021-30141 | Friendica 安全漏洞 | |
| CVE-2021-20307 | lianhaidong libpano13 格式化字符串错误漏洞 | |
| CVE-2021-20305 | Linux Nettle 缓冲区错误漏洞 | |
| CVE-2020-19595 | Core FTP 缓冲区错误漏洞 | |
| CVE-2020-19596 | Core FTP Server 缓冲区错误漏洞 | |
| CVE-2021-30109 | froala editor 跨站脚本漏洞 | |
| CVE-2021-30055 | Knowage SQL注入漏洞 | |
| CVE-2021-30056 | Knowage 跨站脚本漏洞 | |
| CVE-2021-30057 | Knowage 注入漏洞 | |
| CVE-2021-30058 | Knowage 跨站脚本漏洞 | |
| CVE-2021-29996 | Mark Text 跨站脚本漏洞 | |
| CVE-2021-29261 | svelte 安全漏洞 | |
| CVE-2021-28832 | VSCodeVim 安全漏洞 | |
| CVE-2020-17453 | WSO2 Management Console 跨站脚本漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-20308
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