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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2021-3516

Quick assessment

Affected
n/a libxml2
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

libxml2是开源的一个用来解析XML文档的函数库。它用C语言写成，并且能为多种语言所调用，例如C语言，C++，XSH。 libxml2 中entities.c存在资源管理错误漏洞，该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。

AI Predicted 5.5 Difficulty: Moderate EPSS 1.99% · P79

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-3516

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
libxml2 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libxml2是开源的一个用来解析XML文档的函数库。它用C语言写成，并且能为多种语言所调用，例如C语言，C++，XSH。 libxml2 中entities.c存在资源管理错误漏洞，该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。
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
- libxml2 libxml2 2.9.11 -

II. Public POCs for CVE-2021-3516

# POC Description Source Link Shenlong Link
1 None https://github.com/dja2TaqkGEEfA45/CVE-2021-3516 POC Details
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-3516

请登录查看更多情报信息。

Vendor Advisories for CVE-2021-3516 (4)

Mailing List Discussions for CVE-2021-3516 (3)

Other References for CVE-2021-3516 (1)

Same Patch Batch · n/a · 2021-06-01 · 38 CVEs total

CVE-2021-23017 F5 NGINX Controller 安全漏洞
CVE-2020-26669 Fastspot BigTree 跨站脚本漏洞
CVE-2020-26668 Fastspot BigTree SQL注入漏洞
CVE-2021-31641 CHIYU科技BF-630W 跨站脚本漏洞
CVE-2021-3412 3Scale 安全漏洞
CVE-2021-20306 Red Hat BPMN Editor 安全漏洞
CVE-2021-3515 PostgreSQL 操作系统命令注入漏洞
CVE-2021-3495 Kiali-operator 安全漏洞
CVE-2021-3543 Red Hat, Inc. Nitro Enclaves内核驱动 资源管理错误漏洞
CVE-2020-27748 xdg-utils 安全漏洞
CVE-2020-26670 Fastspot BigTree 操作系统命令注入漏洞
CVE-2021-23021 F5 NGINX Controller 安全漏洞
CVE-2021-23020 NGINX控制器 安全特征问题漏洞
CVE-2021-23019 F5 NGINX Controller 安全漏洞
CVE-2021-23018 Nginx 控制器 安全漏洞
CVE-2021-27828 In4Velocity In4Suite ERP SQL注入漏洞
CVE-2021-25932 Opennms Group OpenNMS 跨站脚本漏洞
CVE-2021-31684 Github json-smart-v1 缓冲区错误漏洞
CVE-2021-32027 PostgreSQL 输入验证错误漏洞
CVE-2021-3424 Red Hat Single Sign-On 7安全漏洞

Showing top 20 of 38 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: libxml2
Same vendor: n/a
Same weakness: CWE-416

V. Comments for CVE-2021-3516

No comments yet

Leave a comment