REDHAT-BUG-2322153
First published: Mon Oct 28 2024(Updated: )
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.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Ruby REXML | <3.3.9 | |
| Ruby | >3.1 |
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Reference Links
- https://www.ruby-lang.org/en/news/2024/10/28/redos-rexml-cve-2024-49761/
- https://github.com/ruby/rexml/commit/ce59f2eb1aeb371fe1643414f06618dbe031979f
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2322153#c4
- https://access.redhat.com/errata/RHSA-2024:10777
- https://access.redhat.com/errata/RHSA-2024:10834
- https://access.redhat.com/errata/RHSA-2024:10850
- https://access.redhat.com/errata/RHSA-2024:10858
- https://access.redhat.com/errata/RHSA-2024:10860
- https://access.redhat.com/errata/RHSA-2024:10961
- https://access.redhat.com/errata/RHSA-2024:10964
- https://access.redhat.com/errata/RHSA-2024:10966
- https://access.redhat.com/errata/RHSA-2024:10977
- https://access.redhat.com/errata/RHSA-2024:10982
- https://access.redhat.com/errata/RHSA-2024:10984
- https://access.redhat.com/errata/RHSA-2024:11001
- https://access.redhat.com/errata/RHSA-2024:11027
- https://access.redhat.com/errata/RHSA-2024:11028
- https://access.redhat.com/errata/RHSA-2024:11029
- https://bugzilla.redhat.com/show_bug.cgi?id=2322153
Frequently Asked Questions
What is the severity of REDHAT-BUG-2322153?
The severity of REDHAT-BUG-2322153 is categorized as a ReDoS vulnerability that can affect system performance when parsing certain XML structures.
How do I fix REDHAT-BUG-2322153?
To fix REDHAT-BUG-2322153, upgrade the REXML gem to version 3.3.9 or later, or switch to Ruby version 3.2 or newer.
Which versions of Ruby are affected by REDHAT-BUG-2322153?
Ruby versions prior to 3.3.9 and Ruby 3.1 are affected by REDHAT-BUG-2322153.
What is REXML in relation to REDHAT-BUG-2322153?
REXML is an XML parsing toolkit for Ruby, which is vulnerable to ReDoS in specific conditions as described in REDHAT-BUG-2322153.
Can I use Ruby 3.2 or later to avoid REDHAT-BUG-2322153?
Yes, using Ruby version 3.2 or later will help you avoid the ReDoS vulnerability outlined in REDHAT-BUG-2322153.
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