REXML is an XML toolkit for Ruby. The REXML gem before 3.3.2 has some DoS vulnerabilities when it parses an XML that has many specific characters such as whitespace character, `>]` and `]>`. The REXML gem 3.3.3 or later include the patches to fix these vulnerabilities.
https://www.ruby-lang.org/en/news/2024/08/01/dos-rexml-cve-2024-41123
https://security.netapp.com/advisory/ntap-20241227-0005/
https://github.com/ruby/rexml/security/advisories/GHSA-vg3r-rm7w-2xgh
https://github.com/ruby/rexml/security/advisories/GHSA-r55c-59qm-vjw6
https://github.com/ruby/rexml/security/advisories/GHSA-4xqq-m2hx-25v8
Published: 2024-08-01
Updated: 2024-12-27
Base Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
Severity: High
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity: High
Base Score: 6.9
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Severity: Medium