Summary
Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks.
Security Fix(es):
* resolv: Denial of Service in resolv gem (CVE-2025-24294)
* rexml: REXML denial of service (CVE-2025-58767)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 28
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 9 | ruby | 3.3.10-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | ruby-bundled-gems | 3.3.10-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | ruby-default-gems | 3.3.10-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | ruby-devel | 3.3.10-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | ruby-doc | 3.3.10-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | ruby-libs | 3.3.10-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-bigdecimal | 3.1.5-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-bundler | 2.5.22-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-io-console | 0.7.1-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-irb | 1.13.1-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-json | 2.7.2-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-minitest | 5.20.0-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-mysql2 | 0.5.5-3.module_el9.7.0+184+e2e36072 |
| AlmaLinux · 9 | rubygem-mysql2-doc | 0.5.5-3.module_el9.7.0+184+e2e36072 |
| AlmaLinux · 9 | rubygem-pg | 1.5.4-1.module_el9.4.0+75+1a8fe981 |
| AlmaLinux · 9 | rubygem-pg-doc | 1.5.4-1.module_el9.4.0+75+1a8fe981 |
| AlmaLinux · 9 | rubygem-power_assert | 2.0.3-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-psych | 5.1.2-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-racc | 1.7.3-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-rake | 13.1.0-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-rbs | 3.4.0-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-rdoc | 6.6.3.1-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-rexml | 3.4.4-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-rss | 0.3.1-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-test-unit | 3.6.1-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygem-typeprof | 0.21.9-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygems | 3.5.22-5.module_el9.7.0+193+58179166 |
| AlmaLinux · 9 | rubygems-devel | 3.5.22-5.module_el9.7.0+193+58179166 |
Vulnerabilities 3
-
High 7.5
resolv vulnerable to DoS via insufficient DNS domain name length validation
The attack vector is a potential Denial of Service (DoS). The vulnerability is caused by an insufficient check on the length of a decompressed domain name within a DNS packet. An attacker can craft a malicious DNS packet containing a highly compressed domain …
-
Low 2.1
URI Credential Leakage Bypass over CVE-2025-27221
URI is a module providing classes to handle Uniform Resource Identifiers. In versions 0.12.4 and earlier (bundled in Ruby 3.2 series) 0.13.2 and earlier (bundled in Ruby 3.3 series), 1.0.3 and earlier (bundled in Ruby 3.4 series), when using the + operator to…
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Low 1.2
REXML has a DoS condition when parsing malformed XML file
REXML is an XML toolkit for Ruby. The REXML gems from 3.3.3 to 3.4.1 has a DoS vulnerability when parsing XML containing multiple XML declarations. If you need to parse untrusted XMLs, you may be impacted to these vulnerabilities. The REXML gem 3.4.2 or later…
References
-
report
https://access.redhat.com/security/cve/CVE-2025-24294
-
report
https://access.redhat.com/security/cve/CVE-2025-58767
-
report
https://access.redhat.com/security/cve/CVE-2025-61594
-
report
https://bugzilla.redhat.com/2379684
-
report
https://bugzilla.redhat.com/2396186
-
advisory
https://errata.almalinux.org/9/ALSA-2025-23063.html