CVE-2014-2734
** DISPUTED ** The openssl extension in Ruby 2.x does not properly maintain the state of process...
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
Exploit likelihood
What each source reports
NVD Score used
5.8
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
- Record
CVE-2014-2734- CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-399
- Updated
- 2026-11-02
CVE List No score
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
- Record
CVE-2014-2734- Updated
- 2026-11-02
EUVDEUVD-2014-2762 No score
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
- Record
EUVD-2014-2762- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6qq6-x75v-fgg7 No score
** DISPUTED ** The openssl extension in Ruby 2.x does not properly maintain the state of process...
** DISPUTED ** 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.
- Record
GHSA-6qq6-x75v-fgg7- Updated
- 2026-11-02
OSVBELL-CVE-2014-2734
5.8
CVE-2014-2734 does not affect BellSoft software
- Record
BELL-CVE-2014-2734- CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | adrienthebo/cve-2014-2734 | 2014-04-17 |
| PoC in GitHub | gdisneyleugers/CVE-2014-2734 | 2014-04-16 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2014-2734 is a medium vulnerability (CVSS 5.8) in Ruby-lang Ruby, published April 24, 2014. Its validity is disputed. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 5.35%, the 92nd percentile.
References
packetstormsecurity.com/files/126218/Ruby-OpenSSL-Private-Key-Spoofing.html
osvdb.org/106006
news.ycombinator.com/item?id=7601973
securityfocus.com/bid/66956
seclists.org/fulldisclosure/2014/May/13
gist.github.com/10446549
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ruby-lang.org/en/news/2014/05/09/dispute-of-vulnerability-cve-2014-2734
gist.github.com/emboss/91696b56cd227c8a0c13
github.com/adrienthebo/cve-2014-2734
seclists.org/fulldisclosure/2014/Apr/231
nvd.nist.gov/vuln/detail/CVE-2014-2734
github.com/advisories/GHSA-6qq6-x75v-fgg7
docs.bell-sw.com/security/cves/CVE-2014-2734