ruby: REXML billion laughs attack via parameter entity expansion
Published Nov 3, 2014
5.0
MEDIUMCVSS 2.0
EPSS 5.54%
Description
The REXML parser in Ruby 1.9.x before 1.9.3-p550, 2.0.x before 2.0.0-p594, and 2.1.x before 2.1.4 allows remote attackers to cause a denial of service (memory consumption) via a crafted XML document, aka an XML Entity Expansion (XEE) attack.
Affected products
No data.
Configuration 2
- 12.04
- 14.04
- 14.10
Configuration 3
- ≤ 1.9.3
- 1.9.3
- 1.9.3
- 1.9.3
- 1.9.3
- 1.9.3
- 1.9.3
- 1.9.3
- 1.9.3
- 1.9.3
- 1.9.3
- 1.9.3
- 1.9.3
- 1.9.3
- 2.0.0
- 2.0.0
- 2.0.0
- 2.0.0
- 2.0.0
- 2.0.0
- 2.0.0
- 2.1.1
- 2.1.2
- 2.1.3
Configuration 4
- 6.0
- 7.0
No data.
Red Hat Enterprise Linux 6
ruby-0:1.8.7.374-3.el6_6
Fixed · RHSA-2014:1911
Red Hat Enterprise Linux 7
ruby-0:2.0.0.353-22.el7_0
Fixed · RHSA-2014:1912
Red Hat Hardened Images
ruby3-3-main-3.3.10-23.1.hum1
Fixed · RHSA-2026:7305
Red Hat Hardened Images
ruby3-4-main-3.4.8-31.1.hum1
Fixed · RHSA-2026:7307
Red Hat Hardened Images
ruby4-0-main-4.0.0-33.3.hum1
Fixed · RHSA-2026:8838
Red Hat Software Collections 1 for Red Hat Enterprise Linux 6
ruby193-ruby-0:1.9.3.484-50.el6
Fixed · RHSA-2014:1913
Red Hat Software Collections 1 for Red Hat Enterprise Linux 6
ruby200-ruby-0:2.0.0.353-24.el6
Fixed · RHSA-2014:1914
Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.4 EUS
ruby193-ruby-0:1.9.3.484-50.el6
Fixed · RHSA-2014:1913
Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.4 EUS
ruby200-ruby-0:2.0.0.353-24.el6
Fixed · RHSA-2014:1914
Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.5 EUS
ruby193-ruby-0:1.9.3.484-50.el6
Fixed · RHSA-2014:1913
Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.5 EUS
ruby200-ruby-0:2.0.0.353-24.el6
Fixed · RHSA-2014:1914
Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.6 EUS
ruby193-ruby-0:1.9.3.484-50.el6
Fixed · RHSA-2014:1913
Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.6 EUS
ruby200-ruby-0:2.0.0.353-24.el6
Fixed · RHSA-2014:1914
Red Hat Software Collections 1 for Red Hat Enterprise Linux 7
ruby193-ruby-0:1.9.3.484-50.el7
Fixed · RHSA-2014:1913
Red Hat Software Collections 1 for Red Hat Enterprise Linux 7
ruby200-ruby-0:2.0.0.353-24.el7
Fixed · RHSA-2014:1914
CloudForms Management Engine 5
ruby193-ruby
Will not fix
OpenShift Enterprise 1
ruby193-ruby
Will not fix
Red Hat Enterprise Linux 4
ruby
Will not fix
Red Hat Enterprise Linux 5
ruby
Will not fix
Red Hat JBoss SOA Platform 4
jruby
Will not fix
Red Hat JBoss SOA Platform 5
jruby
Will not fix
Red Hat OpenStack Platform 4
ruby193-ruby
Will not fix
Red Hat Satellite 6
rubygem-rake
Not affected
Red Hat Subscription Asset Manager
ruby193-ruby
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | ruby-0:1.8.7.374-3.el6_6 | Fixed | RHSA-2014:1911 |
| Red Hat Enterprise Linux 7 | ruby-0:2.0.0.353-22.el7_0 | Fixed | RHSA-2014:1912 |
| Red Hat Hardened Images | ruby3-3-main-3.3.10-23.1.hum1 | Fixed | RHSA-2026:7305 |
| Red Hat Hardened Images | ruby3-4-main-3.4.8-31.1.hum1 | Fixed | RHSA-2026:7307 |
| Red Hat Hardened Images | ruby4-0-main-4.0.0-33.3.hum1 | Fixed | RHSA-2026:8838 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 6 | ruby193-ruby-0:1.9.3.484-50.el6 | Fixed | RHSA-2014:1913 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 6 | ruby200-ruby-0:2.0.0.353-24.el6 | Fixed | RHSA-2014:1914 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.4 EUS | ruby193-ruby-0:1.9.3.484-50.el6 | Fixed | RHSA-2014:1913 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.4 EUS | ruby200-ruby-0:2.0.0.353-24.el6 | Fixed | RHSA-2014:1914 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.5 EUS | ruby193-ruby-0:1.9.3.484-50.el6 | Fixed | RHSA-2014:1913 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.5 EUS | ruby200-ruby-0:2.0.0.353-24.el6 | Fixed | RHSA-2014:1914 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.6 EUS | ruby193-ruby-0:1.9.3.484-50.el6 | Fixed | RHSA-2014:1913 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.6 EUS | ruby200-ruby-0:2.0.0.353-24.el6 | Fixed | RHSA-2014:1914 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 7 | ruby193-ruby-0:1.9.3.484-50.el7 | Fixed | RHSA-2014:1913 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 7 | ruby200-ruby-0:2.0.0.353-24.el7 | Fixed | RHSA-2014:1914 |
| CloudForms Management Engine 5 | ruby193-ruby | Will not fix | n/a |
| OpenShift Enterprise 1 | ruby193-ruby | Will not fix | n/a |
| Red Hat Enterprise Linux 4 | ruby | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | ruby | Will not fix | n/a |
| Red Hat JBoss SOA Platform 4 | jruby | Will not fix | n/a |
| Red Hat JBoss SOA Platform 5 | jruby | Will not fix | n/a |
| Red Hat OpenStack Platform 4 | ruby193-ruby | Will not fix | n/a |
| Red Hat Satellite 6 | rubygem-rake | Not affected | n/a |
| Red Hat Subscription Asset Manager | ruby193-ruby | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
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/
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (27 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.54% (0.05538) | 92.58th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.49% (0.05493) | 91.74th | v5 (v2026.06.15) |
| May 18, 2026 | 15.98% (0.15976) | 94.84th | v4 (v2025.03.14) |
| May 13, 2026 | 13.81% (0.13807) | 94.35th | v4 (v2025.03.14) |
| May 11, 2026 | 15.63% (0.15626) | 94.75th | v4 (v2025.03.14) |
| Apr 29, 2026 | 9.76% (0.09758) | 92.97th | v4 (v2025.03.14) |
| Dec 28, 2025 | 10.78% (0.10784) | 93.10th | v4 (v2025.03.14) |
| Dec 27, 2025 | 9.51% (0.09507) | 92.60th | v4 (v2025.03.14) |
| Oct 28, 2025 | 10.78% (0.10784) | 92.99th | v4 (v2025.03.14) |
| Oct 27, 2025 | 9.51% (0.09507) | 92.50th | v4 (v2025.03.14) |
| Oct 1, 2025 | 10.78% (0.10784) | 93.10th | v4 (v2025.03.14) |
| Aug 19, 2025 | 9.51% (0.09507) | 92.50th | v4 (v2025.03.14) |
| Aug 17, 2025 | 14.57% (0.14574) | 94.19th | v4 (v2025.03.14) |
| Jul 30, 2025 | 16.39% (0.16395) | 94.59th | v4 (v2025.03.14) |
| Jul 13, 2025 | 14.73% (0.14731) | 94.16th | v4 (v2025.03.14) |
| Mar 30, 2025 | 5.87% (0.05866) | 89.62th | v4 (v2025.03.14) |
| Mar 29, 2025 | 10.03% (0.10025) | 88.33th | v4 (v2025.03.14) |
| Mar 24, 2025 | 5.87% (0.05866) | 89.63th | v4 (v2025.03.14) |
| Mar 22, 2025 | 4.58% (0.04585) | 88.29th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.87% (0.05866) | 89.88th | v4 (v2025.03.14) |
| Dec 12, 2024 | 9.84% (0.09839) | 95.10th | v3 (v2023.03.01) |
| Jun 15, 2024 | 9.84% (0.09839) | 94.86th | v3 (v2023.03.01) |
| Apr 29, 2024 | 10.98% (0.10976) | 95.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 9.45% (0.09453) | 93.72th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.36% (0.04358) | 88.02th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.36% (0.04358) | 86.83th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.36% (0.04358) | 70.59th | v2 (v2022.01.01) |
References (24)
- http://advisories.mageia.org/MGASA-2014-0443.html x_refsource_CONFIRM
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html vendor-advisoryx_refsource_APPLE
- http://lists.opensuse.org/opensuse-updates/2014-12/msg00035.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2015-01/msg00000.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2015-01/msg00004.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2014-1911.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2014-1912.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2014-1913.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2014-1914.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/61607 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/62050 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/62748 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2015/dsa-3157 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2015/dsa-3159 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:129 vendor-advisoryx_refsource_MANDRIVA
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/70935 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-2397-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2014-8080 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1157709 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2014-8080
- https://support.apple.com/HT205267 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2014-8080
- https://www.ruby-lang.org/en/news/2014/10/27/rexml-dos-cve-2014-8080/ x_refsource_CONFIRMExploitVendor Advisory
Change history (0)
No recorded changes yet.