CVE-2024-39908: Denial of service in REXML
First published: Tue Jul 16 2024(Updated: )
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.
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| rubygems/rexml | <3.3.2 | 3.3.2 |
| debian/ruby2.7 | <=2.7.4-1+deb11u1<=2.7.4-1+deb11u2 | |
| debian/ruby3.1 | <=3.1.2-7+deb12u1<=3.1.2-8.4 | |
| debian/ruby3.2 | <=3.2.3-1 | |
| debian/ruby3.3 | 3.3.6-1 |
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Reference Links
- https://github.com/ruby/rexml/security/advisories/GHSA-4xqq-m2hx-25v8
- https://www.ruby-lang.org/en/news/2024/07/16/dos-rexml-cve-2024-39908
- https://nvd.nist.gov/vuln/detail/CVE-2024-39908
- https://github.com/ruby/rexml/releases/tag/v3.3.2
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rexml/CVE-2024-39908.yml
- https://github.com/advisories/GHSA-4xqq-m2hx-25v8 (Advisory)
- https://access.redhat.com/errata/RHSA-2024:6784
- https://access.redhat.com/errata/RHSA-2024:6785
- https://bugzilla.redhat.com/show_bug.cgi?id=2298243
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-39908
- https://launchpad.net/bugs/cve/CVE-2024-39908
- https://security-tracker.debian.org/tracker/CVE-2024-39908
- https://ubuntu.com/security/CVE-2024-39908
- https://www.ruby-lang.org/en/news/2024/07/16/dos-rexml-cve-2024-39908/
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