Products
REXML gem for Ruby
- before 3.3.6
Source
security-advisories@github.com
Tags
CVE-2024-43398 details
Last Modified : Aug. 22, 2024, 3:15 p.m.
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.
CVSS Score
| 1 | 2 | 3 | 4 | 5.9 | 6 | 7 | 8 | 9 | 10 |
|---|
Weakness
| Weakness | Name | Description |
|---|---|---|
| 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. |
CVSS Data
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Base Score
5.9
Exploitability Score
2.2
Impact Score
3.6
Base Severity
MEDIUM
Vector String : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
References
| URL | Source |
|---|---|
| https://github.com/ruby/rexml/releases/tag/v3.3.6 | security-advisories@github.com |
| https://github.com/ruby/rexml/security/advisories/GHSA-vmwr-mc7x-5vc3 | security-advisories@github.com |