The openssl extension in Ruby 2.x does not properly maintain the state of process memory…
Priority LOW 34CWE-399Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The openssl extension in Ruby 2.x does not properly maintain the state of process memory after a file is reopened, which allows remote attackers to spoof signatures within the context of a Ruby script that attempts signature verification after performing a certain sequence of filesystem operations. NOTE: this issue has been disputed by the Ruby OpenSSL team and third parties, who state that the original demonstration PoC contains errors and redundant or unnecessarily-complex code that does not appear to be related to a demonstration of the issue. As of 20140502, CVE is not aware of any public comment by the original researcher
Why it matters now
EPSS 0.05349 92nd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ruby-lang:ruby:2.0:*:*:*:*:*:*:* | 2.0 | Vulnerable | ruby |
| cpe:2.3:a:ruby-lang:ruby:2.0.0:*:*:*:*:*:*:* | 2.0.0 | Vulnerable | ruby |
| cpe:2.3:a:ruby-lang:ruby:2.0.0:p0:*:*:*:*:*:* | 2.0.0 p0 | Vulnerable | ruby |
| cpe:2.3:a:ruby-lang:ruby:2.0.0:p195:*:*:*:*:*:* | 2.0.0 p195 | Vulnerable | ruby |
| cpe:2.3:a:ruby-lang:ruby:2.0.0:p247:*:*:*:*:*:* | 2.0.0 p247 | Vulnerable | ruby |
| cpe:2.3:a:ruby-lang:ruby:2.0.0:preview1:*:*:*:*:*:* | 2.0.0 preview1 | Vulnerable | ruby |
| cpe:2.3:a:ruby-lang:ruby:2.0.0:preview2:*:*:*:*:*:* | 2.0.0 preview2 | Vulnerable | ruby |
| cpe:2.3:a:ruby-lang:ruby:2.0.0:rc1:*:*:*:*:*:* | 2.0.0 rc1 | Vulnerable | ruby |
| cpe:2.3:a:ruby-lang:ruby:2.0.0:rc2:*:*:*:*:*:* | 2.0.0 rc2 | Vulnerable | ruby |
| cpe:2.3:a:ruby-lang:ruby:2.1:-:*:*:*:*:*:* | 2.1 | Vulnerable | ruby |
- cpe:2.3:a:ruby-lang:ruby:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·ruby
- cpe:2.3:a:ruby-lang:ruby:2.0.0:*:*:*:*:*:*:* Versions 2.0.0 Vulnerable ·ruby
- cpe:2.3:a:ruby-lang:ruby:2.0.0:p0:*:*:*:*:*:* Versions 2.0.0 p0 Vulnerable ·ruby
- cpe:2.3:a:ruby-lang:ruby:2.0.0:p195:*:*:*:*:*:* Versions 2.0.0 p195 Vulnerable ·ruby
- cpe:2.3:a:ruby-lang:ruby:2.0.0:p247:*:*:*:*:*:* Versions 2.0.0 p247 Vulnerable ·ruby
- cpe:2.3:a:ruby-lang:ruby:2.0.0:preview1:*:*:*:*:*:* Versions 2.0.0 preview1 Vulnerable ·ruby
- cpe:2.3:a:ruby-lang:ruby:2.0.0:preview2:*:*:*:*:*:* Versions 2.0.0 preview2 Vulnerable ·ruby
- cpe:2.3:a:ruby-lang:ruby:2.0.0:rc1:*:*:*:*:*:* Versions 2.0.0 rc1 Vulnerable ·ruby
- cpe:2.3:a:ruby-lang:ruby:2.0.0:rc2:*:*:*:*:*:* Versions 2.0.0 rc2 Vulnerable ·ruby
- cpe:2.3:a:ruby-lang:ruby:2.1:-:*:*:*:*:*:* Versions 2.1 Vulnerable ·ruby
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 9 products
- OpenShift Enterprise 1
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat JBoss SOA Platform 4
- Red Hat JBoss SOA Platform 5
- Red Hat OpenStack Platform 3
- Red Hat Software Collections
- Red Hat Subscription Asset Manager
Timeline
- 2026-10-02 Threatist record created from CVE-2014-2734
- 2026-10-03 Alias added: GHSA-6qq6-x75v-fgg7
References
Exploit 2
Other 7
- 106006
- https://news.ycombinator.com/item?id=7601973
- 20140502 Re: Ruby OpenSSL private key spoofing ~ CVE-2014-2734 with PoC
- https://gist.github.com/10446549
- https://www.ruby-lang.org/en/news/2014/05/09/dispute-of-vulnerability-cve-2014-2734/
- https://gist.github.com/emboss/91696b56cd227c8a0c13
- https://github.com/adrienthebo/cve-2014-2734/
More Ruby vulnerabilities
- TI-2026-71508 Integer overflow in GitLab allows code execution on the server KEVCVSS 3.1CRITICAL 10.0
- TI-2017-12709 Ruby before 2.4.3 allows Net::FTP command injection. CVSS 3.0HIGH 8.8
- TI-2008-03501 Algorithmic complexity vulnerability in the WEBrick::HTTPUtils.split_header_value… CVSS 2.0HIGH 7.8
- TI-2021-09891 In Ruby through 3.0 on Windows, a remote attacker can submit a crafted path when a Web… CVSS 3.1HIGH 7.5
- TI-2013-03637 Heap-based buffer overflow in Ruby 1.8, 1.9 before 1.9.3-p484, 2.0 before 2.0.0-p353, 2.1… CVSS 2.0MEDIUM 6.8
- TI-2018-11751 An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2014-2734 · CVE Program
- CVE-2014-2734 · NVD
- FIRST EPSS
- GHSA-6qq6-x75v-fgg7 · GitHub Advisory Database · CC BY 4.0
- CVE-2014-2734 · Red Hat security data · CC BY 4.0
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