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CVE-2021-3518

Quick assessment

Affected
n/a libxml2
Exploitation
High exploitation probability; assess promptly
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xinclude.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 6.5 Difficulty: Moderate EPSS 21.86% · P98

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-3518

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
There's a flaw in libxml2 in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by an application linked with libxml2 could trigger a use-after-free. The greatest impact from 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xinclude.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-2021-3518

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-3518

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Vendor Advisories for CVE-2021-3518 (10)

Mailing List Discussions for CVE-2021-3518 (9)

Same Patch Batch · n/a · 2021-05-18 · 39 CVEs total

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CVE-2021-32238 Epic Games Rocket League 缓冲区错误漏洞
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CVE-2020-24026 TinyShop 跨站脚本漏洞
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CVE-2020-20254 Mikrotik RouterOs 代码问题漏洞
CVE-2020-20253 MikroTik RouterOS 数字错误漏洞
CVE-2021-30145 node-mpv 格式化字符串错误漏洞
CVE-2021-22117 Pivotal Software RabbitMQ 代码注入漏洞
CVE-2020-25709 OpenLDAP 安全漏洞
CVE-2002-2438 TCP 授权问题漏洞
CVE-2021-31827 Progress Software MOVEit Transfer SQL注入漏洞
CVE-2021-3531 Red Hat Ceph 输入验证错误漏洞
CVE-2020-19924 BoostIO Boostnote 跨站脚本漏洞

Showing top 20 of 39 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-3518

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