Vulnerability · Published May 9, 2022 · Assigned by mitre
CVE-2022-28738
Critical 9.8
In plain English
A critical-severity security flaw in the ruby package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.1% (higher than 88% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)3.1%top 12.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A double free was found in the Regexp compiler in Ruby 3.x before 3.0.4 and 3.1.x before 3.1.2. If a victim attempts to create a Regexp from untrusted user input, an attacker may be able to write to unexpected memory locations.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | ruby | 3.0.4-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | ruby | 3.0.4-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | ruby-default-gems | 3.0.4-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | ruby-default-gems | 3.0.4-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | ruby-devel | 3.0.4-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | ruby-devel | 3.0.4-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | ruby-doc | 3.0.4-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | ruby-doc | 3.0.4-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | ruby-libs | 3.0.4-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | ruby-libs | 3.0.4-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygem-abrt | 0.4.0-1.module_el8.5.0+2595+0c654ebc | ALSA-2022:6450 |
| AlmaLinux:8 | rubygem-abrt-doc | 0.4.0-1.module_el8.5.0+2595+0c654ebc | ALSA-2022:6450 |
| AlmaLinux:8 | rubygem-bigdecimal | 3.0.0-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygem-bigdecimal | 3.0.0-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygem-bundler | 2.2.33-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygem-bundler | 2.2.33-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygem-io-console | 0.5.7-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygem-io-console | 0.5.7-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygem-irb | 1.3.5-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygem-irb | 1.3.5-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygem-json | 2.5.1-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygem-json | 2.5.1-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygem-minitest | 5.14.2-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygem-minitest | 5.14.2-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygem-mysql2 | 0.5.3-1.module_el8.6.0+3144+d138acf1 | ALSA-2022:6450 |
| AlmaLinux:8 | rubygem-mysql2 | 0.5.3-1.module_el8.5.0+118+1ab773e1 | ALSA-2022:6450 |
| AlmaLinux:8 | rubygem-mysql2 | 0.5.3-1.module_el8.5.0+2595+0c654ebc | ALSA-2022:6450 |
| AlmaLinux:8 | rubygem-mysql2-doc | 0.5.3-1.module_el8.5.0+2595+0c654ebc | ALSA-2022:6450 |
| AlmaLinux:8 | rubygem-pg | 1.2.3-1.module_el8.6.0+3144+d138acf1 | ALSA-2022:6450 |
| AlmaLinux:8 | rubygem-pg | 1.2.3-1.module_el8.5.0+2595+0c654ebc | ALSA-2022:6450 |
| AlmaLinux:8 | rubygem-pg | 1.2.3-1.module_el8.5.0+118+1ab773e1 | ALSA-2022:6450 |
| AlmaLinux:8 | rubygem-pg-doc | 1.2.3-1.module_el8.5.0+2595+0c654ebc | ALSA-2022:6450 |
| AlmaLinux:8 | rubygem-power_assert | 1.2.0-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygem-power_assert | 1.2.0-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygem-psych | 3.3.2-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygem-psych | 3.3.2-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygem-rake | 13.0.3-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygem-rake | 13.0.3-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygem-rbs | 1.4.0-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygem-rbs | 1.4.0-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygem-rdoc | 6.3.3-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygem-rdoc | 6.3.3-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygem-rexml | 3.2.5-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygem-rexml | 3.2.5-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygem-rss | 0.2.9-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygem-rss | 0.2.9-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygem-test-unit | 3.3.7-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygem-test-unit | 3.3.7-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygem-typeprof | 0.15.2-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygem-typeprof | 0.15.2-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygems | 3.2.33-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygems | 3.2.33-160.el9_0 | ALSA-2022:6585 |
| AlmaLinux:8 | rubygems-devel | 3.2.33-141.module_el8.6.0+3263+41cde0c0 | ALSA-2022:6450 |
| AlmaLinux:9 | rubygems-devel | 3.2.33-160.el9_0 | ALSA-2022:6585 |
| Alpine:v3.20 | ruby | 3.1.2-r0 | ALPINE-CVE-2022-28738 |
| Alpine:v3.21 | ruby | 3.1.2-r0 | ALPINE-CVE-2022-28738 |
| Alpine:v3.22 | ruby | 3.1.2-r0 | ALPINE-CVE-2022-28738 |
| Alpine:v3.23 | ruby | 3.1.2-r0 | ALPINE-CVE-2022-28738 |
| Alpine:v3.24 | ruby | 3.1.2-r0 | ALPINE-CVE-2022-28738 |
| Rocky Linux:8 | ruby | 0:3.0.4-141.module+el8.6.0+1002+a7dba0ac | RLSA-2022:6450 |
| Rocky Linux:9 | ruby | 0:3.0.4-160.el9_0 | RLSA-2022:6585 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.5.0+668+665814fa | RLSA-2022:6450 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.4.0+411+b946f28c | RLSA-2022:6450 |
| Rocky Linux:8 | rubygem-abrt | 0:0.4.0-1.module+el8.4.0+594+11b6673a | RLSA-2022:6450 |
| Rocky Linux:8 | rubygem-mysql2 | 0:0.5.3-1.module+el8.5.0+668+665814fa | RLSA-2022:6450 |
| Rocky Linux:8 | rubygem-mysql2 | 0:0.5.3-1.module+el8.4.0+594+11b6673a | RLSA-2022:6450 |
| Rocky Linux:8 | rubygem-mysql2 | 0:0.5.3-1.module+el8.4.0+411+b946f28c | RLSA-2022:6450 |
| Rocky Linux:8 | rubygem-pg | 0:1.2.3-1.module+el8.4.0+594+11b6673a | RLSA-2022:6450 |
| Rocky Linux:8 | rubygem-pg | 0:1.2.3-1.module+el8.4.0+411+b946f28c | RLSA-2022:6450 |
| Rocky Linux:8 | rubygem-pg | 0:1.2.3-1.module+el8.5.0+668+665814fa | RLSA-2022:6450 |
| Ubuntu:22.04:LTS | ruby3.0 | 3.0.2-7ubuntu2.1 | USN-5462-1 |
| Ubuntu:22.04:LTS | ruby3.0 | 3.0.2-7ubuntu2.1 | UBUNTU-CVE-2022-28738 |