CVE-2024-43398 – rexml

Package

Manager: gem
Name: rexml
Vulnerable Version: >=0 <3.3.6

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00208 pctl0.43272

Details

REXML denial of service vulnerability ### Impact 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. ### Patches The REXML gem 3.3.6 or later include the patch to fix the vulnerability. ### Workarounds Don't parse untrusted XMLs with tree parser API. ### References * https://www.ruby-lang.org/en/news/2024/08/22/dos-rexml-cve-2024-43398/ : An announce on www.ruby-lang.org

Metadata

Created: 2024-08-22T16:40:46Z
Modified: 2025-01-03T12:30:31Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/08/GHSA-vmwr-mc7x-5vc3/GHSA-vmwr-mc7x-5vc3.json
CWE IDs: ["CWE-776"]
Alternative ID: GHSA-vmwr-mc7x-5vc3
Finding: F083
Auto approve: 1