Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2021-21899

Quick assessment

Affected
n/a LibreCAD
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.

LibreCAD是LibreCAD组织的一款开源的CAD（计算机辅助设计）应用程序。 LibreCad libdxfrw 中存在缓冲区错误漏洞，该漏洞源于产品的dwgCompressor::copyCompBytes21函数未能正确处理特殊的输入数据。攻击者可通过该漏洞导致堆缓冲区溢出。以下产品及版本受到影响： LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580 版本。

AI Predicted 8.8 Difficulty: Easy EPSS 2.77% · P86
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-21899

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A code execution vulnerability exists in the dwgCompressor::copyCompBytes21 functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dwg file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
LibreCAD 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LibreCAD是LibreCAD组织的一款开源的CAD（计算机辅助设计）应用程序。 LibreCad libdxfrw 中存在缓冲区错误漏洞，该漏洞源于产品的dwgCompressor::copyCompBytes21函数未能正确处理特殊的输入数据。攻击者可通过该漏洞导致堆缓冲区溢出。以下产品及版本受到影响： LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580 版本。
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
- LibreCAD LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580 -

II. Public POCs for CVE-2021-21899

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-21899

请登录查看更多情报信息。

Vendor Advisories for CVE-2021-21899 (2)

Mailing List Discussions for CVE-2021-21899 (3)

Other References for CVE-2021-21899 (1)

Same Patch Batch · n/a · 2021-11-19 · 35 CVEs total

CVE-2021-23433 5.9 MEDIUM Prototype Pollution
CVE-2021-33850 WordPress 跨站脚本漏洞
CVE-2021-29325 Moddable SDK 缓冲区错误漏洞
CVE-2021-29323 Moddable SDK 缓冲区错误漏洞
CVE-2021-29324 Moddable SDK 缓冲区错误漏洞
CVE-2021-22028 Greenplum Database 路径遍历漏洞
CVE-2021-3962 ImageMagick 资源管理错误漏洞
CVE-2021-22030 Greenplum Database 日志信息泄露漏洞
CVE-2021-22053 VMware Spring Cloud Netflix 代码注入漏洞
CVE-2021-29326 Moddable SDK 缓冲区错误漏洞
CVE-2021-37592 Suricata 缓冲区错误漏洞
CVE-2021-41435 ASUS routers 安全漏洞
CVE-2021-41436 ASUS routers 环境问题漏洞
CVE-2021-44033 Ionic Identity Vault 安全漏洞
CVE-2021-44025 Roundcube Webmail 跨站脚本漏洞
CVE-2021-44026 Roundcube Webmail SQL注入漏洞
CVE-2021-21898 LibreCAD 缓冲区错误漏洞
CVE-2021-21900 LibreCAD 资源管理错误漏洞
CVE-2021-29327 Moddable SDK 缓冲区错误漏洞
CVE-2021-29328 Moddable SDK 缓冲区错误漏洞

Showing top 20 of 35 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: LibreCAD
Same vendor: n/a
Same weakness: CWE-119

V. Comments for CVE-2021-21899

No comments yet

Leave a comment