Bug 1157709 (CVE-2014-8080)
| Summary: | CVE-2014-8080 ruby: REXML billion laughs attack via parameter entity expansion | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Vasyl Kaigorodov <vkaigoro> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | abaron, apevec, bcourt, bkearney, bleanhar, cbillett, ccoleman, chrisw, dajohnso, dallan, dmcphers, gkotton, gmccullo, gmollett, hhorak, jialiu, jmatthew, joelsmith, jokerman, jorton, jprause, jvlcek, katello-bugs, lhh, lmeyer, lpeer, markmc, mburns, mmaslano, mmccomas, mmccune, mmcgrath, mtasaka, ohadlevy, rbryant, rchan, sclewis, soa-p-jira, srevivo, s, tagoh, tomckay, tsanders, vanmeeuwen+fedora, vondruch, weli, xlecauch |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | ruby 1.9.3-p550, ruby 2.0.0-p594, ruby 2.1.4, jruby 1.7.16.1 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-10-20 10:47:34 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1157936, 1158215, 1163993, 1163994, 1163998, 1164000, 1164004, 1164005, 1165380, 1542172, 1542173 | ||
| Bug Blocks: | 1157711 | ||
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Description
Vasyl Kaigorodov
2014-10-27 14:30:35 UTC
Created ruby tracking bugs for this issue: Affects: fedora-all [bug 1157936] (In reply to Vasyl Kaigorodov from comment #0) > Upstream commit fixing this: > http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/?pathrev=48161 The actual commit is: http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=48161 It also provides more details of the issue, which were excluded form the upstream advisory. This issue is a "billion laughs" issue, using parameter entities to trigger high CPU / memory usage DoS. REXML was previously changed to implement protections against billion laughs attacks, e.g. via bug 460134 (CVE-2008-3790) or via bug 914716 (CVE-2013-1821). External References: https://www.ruby-lang.org/en/news/2014/10/27/rexml-dos-cve-2014-8080/ Created jruby tracking bugs for this issue: Affects: fedora-all [bug 1158215] JRuby was fixed upstream in version 1.7.16.1: http://jruby.org/2014/10/28/jruby-1-7-16-1.html Statement: Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/ Red Hat JBoss SOA Platform 5 is now in Maintenance Support phase receiving only qualified Important and Critical impact security fixes; and Red Hat JBoss SOA Platform 4.3 is now in Extended Life Support phase receiving only Critical impact security fixes. This issue has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat JBoss Middleware Product Life Cycle: https://access.redhat.com/support/policy/updates/jboss_notes/ In the past updates, billion laughs attack issues in REXML were addressed by introduction of the REXML::Document.entity_expansion_limit and REXML.entity_expansion_text_limit. These define limits on the number of entity expansions, or the size of expansion. These limits were not properly applied when expanding parameter entities, leading to this issue. ruby-2.1.4-24.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report. This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Via RHSA-2014:1911 https://rhn.redhat.com/errata/RHSA-2014-1911.html This issue has been addressed in the following products: Red Hat Software Collections 1 for Red Hat Enterprise Linux 7 Red Hat Software Collections 1 for Red Hat Enterprise Linux 6 Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.5 EUS Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.4 EUS Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.6 EUS Via RHSA-2014:1914 https://rhn.redhat.com/errata/RHSA-2014-1914.html This issue has been addressed in the following products: Red Hat Software Collections 1 for Red Hat Enterprise Linux 7 Red Hat Software Collections 1 for Red Hat Enterprise Linux 6 Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.5 EUS Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.4 EUS Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.6 EUS Via RHSA-2014:1913 https://rhn.redhat.com/errata/RHSA-2014-1913.html This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2014:1912 https://rhn.redhat.com/errata/RHSA-2014-1912.html |