CVE-2024-49761: ruby — Fix

Description

REXML is an XML toolkit for Ruby. 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. The REXML gem 3.3.9 or later include the patch to fix the vulnerability.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-1333 CWE-1333

Affected Products

Vendor	Product	Versions
ruby-lang	rexml	< 3.3.9
ruby-lang	ruby	< 3.2.0
netapp	ontap_tools	All

References

Advisories & Patches

https://github.com/ruby/rexml/commit/ce59f2eb1aeb371fe1643414f06618dbe031979f https://www.ruby-lang.org/en/news/2024/10/28/redos-rexml-cve-2024-49761

Other References

https://github.com/ruby/rexml/security/advisories/GHSA-2rxp-v6pw-ch6m https://lists.debian.org/debian-lts-announce/2025/01/msg00011.html https://security.netapp.com/advisory/ntap-20241227-0004/

Frequently Asked Questions

What is CVE-2024-49761? +

REXML is an XML toolkit for Ruby. 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. The REXML gem 3.3.9 or later include the patch to fix the vulnerability. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-49761? +

CVE-2024-49761 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-49761? +

CVE-2024-49761 affects products from netapp, ruby-lang, specifically: ontap_tools, rexml, ruby. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-49761? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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