CVE-2024-43398

Aug. 23, 2024, 4:18 p.m.

5.9
Medium

Description

REXML is an XML toolkit for Ruby. The REXML gem before 3.3.6 has a DoS vulnerability when it parses an XML that has many deep elements that have same local name attributes. If you need to parse untrusted XMLs with tree parser API like REXML::Document.new, you may be impacted to this vulnerability. If you use other parser APIs such as stream parser API and SAX2 parser API, this vulnerability is not affected. The REXML gem 3.3.6 or later include the patch to fix the vulnerability.

Product(s) Impacted

Product Versions
REXML gem for Ruby
  • before 3.3.6

Weaknesses

CWE-776
Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities.

References

https://github.com/ruby/rexml/releases/tag/v3.3.6
https://github.com/ruby/rexml/security/advisories/GHSA-vmwr-mc7x-5vc3

Tags

security-advisories@github.com
CWE-776
2024-08-22
CVE-2024-43398

CVSS Score

5.9 / 10

CVSS Data

  • Attack Vector: NETWORK
  • Attack Complexity: HIGH
  • Privileges Required: NONE
  • Scope: UNCHANGED
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: HIGH
    • View Vector String

    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Date

  • Published: Aug. 22, 2024, 3:15 p.m.
  • Last Modified: Aug. 23, 2024, 4:18 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security-advisories@github.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.