ghsa-2rxp-v6pw-ch6m
Vulnerability from github
Published
2024-10-28 14:10
Modified
2024-12-27 18:30
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.6 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
Summary
REXML ReDoS vulnerability
Details

Impact

The REXML gem before 3.3.9 has a ReDoS vulnerability when it parses an XML that has many digits between &# and x...; in a hex numeric character reference (&#x...;).

This does not happen with Ruby 3.2 or later. Ruby 3.1 is the only affected maintained Ruby. Note that Ruby 3.1 will reach EOL on 2025-03.

Patches

The REXML gem 3.3.9 or later include the patch to fix the vulnerability.

Workarounds

Use Ruby 3.2 or later instead of Ruby 3.1.

References

  • https://www.ruby-lang.org/en/news/2024/10/28/redos-rexml-cve-2024-49761/: An announce on www.ruby-lang.org
Show details on source website

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{
   affected: [
      {
         package: {
            ecosystem: "RubyGems",
            name: "rexml",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "0",
                  },
                  {
                     fixed: "3.3.9",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
      },
   ],
   aliases: [
      "CVE-2024-49761",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-1333",
      ],
      github_reviewed: true,
      github_reviewed_at: "2024-10-28T14:10:18Z",
      nvd_published_at: "2024-10-28T15:15:05Z",
      severity: "MODERATE",
   },
   details: "### Impact\n\nThe REXML gem before 3.3.9 has a ReDoS vulnerability when it parses an XML that has many digits between `&#` and `x...;` in a hex numeric character reference (`&#x...;`).\n\nThis does not happen with Ruby 3.2 or later. Ruby 3.1 is the only affected maintained Ruby. Note that Ruby 3.1 will reach EOL on 2025-03.\n\n### Patches\n\nThe REXML gem 3.3.9 or later include the patch to fix the vulnerability.\n\n### Workarounds\n\nUse Ruby 3.2 or later instead of Ruby 3.1.\n\n### References\n\n* https://www.ruby-lang.org/en/news/2024/10/28/redos-rexml-cve-2024-49761/: An announce on www.ruby-lang.org\n",
   id: "GHSA-2rxp-v6pw-ch6m",
   modified: "2024-12-27T18:30:26Z",
   published: "2024-10-28T14:10:18Z",
   references: [
      {
         type: "WEB",
         url: "https://github.com/ruby/rexml/security/advisories/GHSA-2rxp-v6pw-ch6m",
      },
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2024-49761",
      },
      {
         type: "WEB",
         url: "https://github.com/ruby/rexml/commit/ce59f2eb1aeb371fe1643414f06618dbe031979f",
      },
      {
         type: "PACKAGE",
         url: "https://github.com/ruby/rexml",
      },
      {
         type: "WEB",
         url: "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rexml/CVE-2024-49761.yml",
      },
      {
         type: "WEB",
         url: "https://security.netapp.com/advisory/ntap-20241227-0004",
      },
      {
         type: "WEB",
         url: "https://www.ruby-lang.org/en/news/2024/10/28/redos-rexml-cve-2024-49761",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
         type: "CVSS_V3",
      },
      {
         score: "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U",
         type: "CVSS_V4",
      },
   ],
   summary: "REXML ReDoS vulnerability",
}


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