ruby: SSL signature spoofing flaw
Published Apr 24, 2014
5.8
MEDIUMCVSS 2.0
EPSS 5.35%
Description
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
Affected products
No data.
- 2.0
- 2.0.0
- 2.0.0
- 2.0.0
- 2.0.0
- 2.0.0
- 2.0.0
- 2.0.0
- 2.0.0
- 2.1
- 2.1
- 2.1.1
No data.
OpenShift Enterprise 1
ruby193-ruby
Not affected
Red Hat Enterprise Linux 5
ruby
Not affected
Red Hat Enterprise Linux 6
ruby
Not affected
Red Hat Enterprise Linux 7
ruby
Not affected
Red Hat JBoss SOA Platform 4
jruby
Not affected
Red Hat JBoss SOA Platform 5
jruby
Not affected
Red Hat OpenStack Platform 3
ruby193-ruby
Not affected
Red Hat Software Collections
ruby193-ruby
Not affected
Red Hat Software Collections
ruby200-ruby
Not affected
Red Hat Subscription Asset Manager
ruby193-ruby
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| OpenShift Enterprise 1 | ruby193-ruby | Not affected | n/a |
| Red Hat Enterprise Linux 5 | ruby | Not affected | n/a |
| Red Hat Enterprise Linux 6 | ruby | Not affected | n/a |
| Red Hat Enterprise Linux 7 | ruby | Not affected | n/a |
| Red Hat JBoss SOA Platform 4 | jruby | Not affected | n/a |
| Red Hat JBoss SOA Platform 5 | jruby | Not affected | n/a |
| Red Hat OpenStack Platform 3 | ruby193-ruby | Not affected | n/a |
| Red Hat Software Collections | ruby193-ruby | Not affected | n/a |
| Red Hat Software Collections | ruby200-ruby | Not affected | n/a |
| Red Hat Subscription Asset Manager | ruby193-ruby | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
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:M/Au:N/C:P/I:P/A:N
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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.35% (0.05349) | 92.38th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.35% (0.05349) | 91.56th | v5 (v2026.06.15) |
| Mar 30, 2025 | 6.34% (0.06341) | 90.04th | v4 (v2025.03.14) |
| Mar 29, 2025 | 37.97% (0.37968) | 95.78th | v4 (v2025.03.14) |
| Mar 28, 2025 | 6.34% (0.06341) | 90.05th | v4 (v2025.03.14) |
| Mar 27, 2025 | 37.97% (0.37968) | 96.70th | v4 (v2025.03.14) |
| Mar 20, 2025 | 26.80% (0.26802) | 95.95th | v4 (v2025.03.14) |
| Mar 19, 2025 | 37.97% (0.37968) | 96.75th | v4 (v2025.03.14) |
| Mar 17, 2025 | 26.80% (0.26802) | 95.94th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.27% (0.02265) | 90.00th | v3 (v2023.03.01) |
| Apr 22, 2024 | 3.18% (0.03176) | 91.04th | v3 (v2023.03.01) |
| Dec 5, 2023 | 3.81% (0.03814) | 90.90th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.86% (0.03859) | 90.52th | v3 (v2023.03.01) |
| Mar 6, 2023 | 27.34% (0.27336) | 97.18th | v2 (v2022.01.01) |
| Feb 4, 2022 | 27.34% (0.27336) | 95.90th | v2 (v2022.01.01) |
References (14)
- http://packetstormsecurity.com/files/126218/Ruby-OpenSSL-Private-Key-Spoofing.html x_refsource_MISCExploit
- http://seclists.org/fulldisclosure/2014/Apr/231 mailing-listx_refsource_FULLDISCExploit
- http://seclists.org/fulldisclosure/2014/May/13 mailing-listx_refsource_FULLDISC
- http://www.osvdb.org/106006 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/66956 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2014-2734 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1091156 Issue Tracking
- https://gist.github.com/10446549 x_refsource_MISC
- https://gist.github.com/emboss/91696b56cd227c8a0c13 x_refsource_MISC
- https://github.com/adrienthebo/cve-2014-2734/ x_refsource_MISC
- https://news.ycombinator.com/item?id=7601973 x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2014-2734
- https://www.cve.org/CVERecord?id=CVE-2014-2734
- https://www.ruby-lang.org/en/news/2014/05/09/dispute-of-vulnerability-cve-2014-2734/ x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/126218/Ruby-OpenSSL-Private-Key-Spoofing.html | x_refsource_MISCExploit | |
| http://seclists.org/fulldisclosure/2014/Apr/231 | mailing-listx_refsource_FULLDISCExploit | |
| http://seclists.org/fulldisclosure/2014/May/13 | mailing-listx_refsource_FULLDISC | |
| http://www.osvdb.org/106006 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/bid/66956 | vdb-entryx_refsource_BID | |
| https://access.redhat.com/security/cve/CVE-2014-2734 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1091156 | Issue Tracking | |
| https://gist.github.com/10446549 | x_refsource_MISC | |
| https://gist.github.com/emboss/91696b56cd227c8a0c13 | x_refsource_MISC | |
| https://github.com/adrienthebo/cve-2014-2734/ | x_refsource_MISC | |
| https://news.ycombinator.com/item?id=7601973 | x_refsource_MISC | |
| https://nvd.nist.gov/vuln/detail/CVE-2014-2734 | ||
| https://www.cve.org/CVERecord?id=CVE-2014-2734 | ||
| https://www.ruby-lang.org/en/news/2014/05/09/dispute-of-vulnerability-cve-2014-2734/ | x_refsource_MISC |
Change history (0)
No recorded changes yet.