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CVE-2024-39908— Denial of service in REXML

Quick assessment

Affected
ruby rexml
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.

REXML是Ruby开源的一个用于 Ruby 的 XML 工具包。 REXML 3.3.2之前版本存在安全漏洞，该漏洞源于存在拒绝服务漏洞。

CVSS 4.3 · Medium EPSS 1.49% · P73

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2024-39908

Vulnerability Information
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Vulnerability Title
Denial of service in REXML
Source: CVE Program / CVE List V5
Vulnerability Description
REXML is an XML toolkit for Ruby. The REXML gem before 3.3.1 has some DoS vulnerabilities when it parses an XML that has many specific characters such as `<`, `0` and `%>`. If you need to parse untrusted XMLs, you many be impacted to these vulnerabilities. The REXML gem 3.3.2 or later include the patches to fix these vulnerabilities. Users are advised to upgrade. Users unable to upgrade should avoid parsing untrusted XML strings.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
REXML 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
REXML是Ruby开源的一个用于 Ruby 的 XML 工具包。 REXML 3.3.2之前版本存在安全漏洞，该漏洞源于存在拒绝服务漏洞。
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
ruby rexml < 3.3.2 -

II. Public POCs for CVE-2024-39908

# POC Description Source Link Shenlong Link
1 CVE-2024-39908 full poc https://github.com/SpiralBL0CK/CVE-2024-39908 POC Details
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III. Intelligence Information for CVE-2024-39908

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Vendor Advisories for CVE-2024-39908 (2)

IV. Related Vulnerabilities

Same product: rexml
Same vendor: ruby
Same weakness: CWE-400

V. Comments for CVE-2024-39908

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