CVE-2024-39908 Denial of service in REXML

2024-07-1617:28:07

CWE-400

GitHub_M

github.com

xml toolkit

ruby

dos vulnerabilities

untrusted xmls

upgrade

CVSS3

4.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

AI Score

7.2

Confidence

Low

EPSS

Percentile

9.3%

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

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.

CNA Affected

[
  {
    "vendor": "ruby",
    "product": "rexml",
    "versions": [
      {
        "status": "affected",
        "version": "< 3.3.2"
      }
    ]
  }
]

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:ruby-lang:rexml:*:*:*:*:*:ruby:*:*"
    ],
    "vendor": "ruby-lang",
    "product": "rexml",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "3.3.2",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  }
]