Description
The diff_pp function in lib/gauntlet_rubyparser.rb in the ruby_parser gem 3.1.1 and earlier for Ruby allows local users to overwrite arbitrary files via a symlink attack on a temporary file with a predictable name in /tmp.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | ruby-parser | No fix yet | — |
| Ubuntu 18.04 LTS | ruby-parser | No fix yet | — |
| Ubuntu 16.04 LTS | ruby-parser | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenShift 1 | graphviz +4 | 2.26.0-10.el6 | RHSA-2013:0582 |
| Red Hat OpenShift 1 | openshift-console | 0.0.16-1.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | openshift-origin-broker +1 | 1.0.11-1.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | openshift-origin-broker-util | 1.0.15-1.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | openshift-origin-cartridge-diy-0.1 +3 | 1.0.3-1.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | openshift-origin-cartridge-haproxy-1.4 +1 | 1.0.4-1.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | openshift-origin-cartridge-jbossews-1.0 | 1.0.13-1.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | openshift-origin-cartridge-jenkins-1.4 +1 | 1.0.2-1.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | openshift-origin-cartridge-php-5.3 +2 | 1.0.5-1.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | openshift-origin-cartridge-postgresql-8.4 | 1.0.3-2.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | openshift-origin-cartridge-ruby-1.8 | 1.0.7-1.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | openshift-origin-cartridge-ruby-1.9-scl | 1.0.8-1.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | php +5 | 5.3.3-22.el6 | RHSA-2013:0582 |
| Red Hat OpenShift 1 | ruby193-ruby +5 | 1.9.3.327-25.el6 | RHSA-2013:0582 |
| Red Hat OpenShift 1 | ruby193-rubygem-actionpack +3 | 1:3.2.8-3.el6 | RHSA-2013:0582 |
| Red Hat OpenShift 1 | ruby193-rubygem-bigdecimal | 1.1.0-25.el6 | RHSA-2013:0582 |
| Red Hat OpenShift 1 | ruby193-rubygem-io-console | 0.3-25.el6 | RHSA-2013:0582 |
| Red Hat OpenShift 1 | ruby193-rubygem-json | 1.5.4-25.el6 | RHSA-2013:0582 |
| Red Hat OpenShift 1 | ruby193-rubygem-minitest | 2.5.1-25.el6 | RHSA-2013:0582 |
| Red Hat OpenShift 1 | ruby193-rubygem-railties +3 | 3.2.8-2.el6 | RHSA-2013:0582 |
| Red Hat OpenShift 1 | ruby193-rubygem-rake | 0.9.2.2-25.el6 | RHSA-2013:0582 |
| Red Hat OpenShift 1 | ruby193-rubygem-rdoc | 3.9.4-25.el6 | RHSA-2013:0582 |
| Red Hat OpenShift 1 | ruby193-rubygem-ruby_parser +1 | 2.3.1-3.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | ruby193-rubygems +1 | 1.8.23-25.el6 | RHSA-2013:0582 |
| Red Hat OpenShift 1 | rubygem-actionpack | 1:3.0.13-4.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | rubygem-activemodel +1 | 3.0.13-3.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | rubygem-activerecord | 1:3.0.13-5.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | rubygem-bson +2 | 1.8.1-2.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | rubygem-openshift-origin-console +1 | 1.0.10-1.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | rubygem-openshift-origin-controller | 1.0.12-1.el6op | RHSA-2013:0582 |
| Red Hat OpenShift 1 | rubygem-ruby_parser +1 | 2.0.4-6.el6op | RHSA-2013:0582 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| RubyGems | ruby_parser | >= 2.0.2, < 3.1.2 | 3.1.2 | GHSA-8mvw-22r7-w6fq |
Advisories 1
- RHSA-2013:0582 Red Hat Security Advisory: Red Hat OpenShift Enterprise 1.1.1 update Red Hat Security Advisories (RHSA) · Jun 28, 2026
References
- https://bugzilla.redhat.com/show_bug.cgi?id=892806
- RHSA-2013:0548 vendor-advisory
- RHSA-2013:0544 vendor-advisory