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CVE-2022-43680

Quick assessment

Affected
n/a n/a
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.

libexpat是一款使用C语言编写的流式XML解析器。 libexpat 2.4.9版本及之前版本存在资源管理错误漏洞，该漏洞源于在内存不足的情况下，过度破坏XML_ExternalEntityParserCreate中的共享DTD而导致内存释放后重用。

AI Predicted 7.8 Difficulty: Hard EPSS 2.46% · P84

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-43680

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.
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
libexpat 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libexpat是一款使用C语言编写的流式XML解析器。 libexpat 2.4.9版本及之前版本存在资源管理错误漏洞，该漏洞源于在内存不足的情况下，过度破坏XML_ExternalEntityParserCreate中的共享DTD而导致内存释放后重用。
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 -

II. Public POCs for CVE-2022-43680

# POC Description Source Link Shenlong Link
1 None https://github.com/Trinadh465/external_expat-2.1.0_CVE-2022-43680 POC Details
2 None https://github.com/nidhihcl/external_expat_2.1.0_CVE-2022-43680 POC Details
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III. Intelligence Information for CVE-2022-43680

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Patches & Fixes for CVE-2022-43680 (2)

Vendor Advisories for CVE-2022-43680 (2)

Mailing List Discussions for CVE-2022-43680 (9)

Other References for CVE-2022-43680 (1)

Same Patch Batch · n/a · 2022-10-24 · 10 CVEs total

CVE-2022-29851 Open-Xchange OX App Suite 操作系统命令注入漏洞
CVE-2022-31468 Open-Xchange OX App Suite 跨站脚本漏洞
CVE-2021-46848 GNU Libtasn1 缓冲区错误漏洞
CVE-2021-46850 Vesta Control Panel 参数注入漏洞
CVE-2022-3344 Linux kernel 安全漏洞
CVE-2022-38580 Skipper 代码问题漏洞
CVE-2022-39836 dlt-daemon 缓冲区错误漏洞
CVE-2022-39837 dlt-daemon 代码问题漏洞
CVE-2022-43677 free5GC 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2022-43680

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