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CVE-2017-14033

22
FAUCET Score

CVE-2017-14033 is a denial-of-service vulnerability affecting the OpenSSL::ASN1 module in Ruby versions before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1. An unauthenticated attacker can exploit this by providing a specially crafted string, leading to an interpreter crash. This vulnerability has a CVSS score of 7.5 (High), indicating a network-based attack with low complexity and a high impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.2.0CPE matchmatch criteria
cpe:2.3:a:ruby-lang:ruby:2.2.0:*:*:*:*:*:*:*
2.2.0CPE matchmatch criteria
cpe:2.3:a:ruby-lang:ruby:2.2.0:preview1:*:*:*:*:*:*
2.2.0CPE matchmatch criteria
cpe:2.3:a:ruby-lang:ruby:2.2.0:preview2:*:*:*:*:*:*
2.2.0CPE matchmatch criteria
cpe:2.3:a:ruby-lang:ruby:2.2.0:rc1:*:*:*:*:*:*
2.2.1CPE matchmatch criteria
cpe:2.3:a:ruby-lang:ruby:2.2.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
7.73%
Probability of exploitation in next 30 days
EPSS Percentile
94.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0773 is in the 90th percentile among its peer group of 51,553 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (13)

redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: rh-ruby23-ruby-0:2.3.6-67.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: ruby-0:2.0.0.648-33.el7_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-ruby22-ruby-0:2.2.9-19.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-ruby23-ruby-0:2.3.6-67.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: rh-ruby22-ruby-0:2.2.9-19.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: rh-ruby23-ruby-0:2.3.6-67.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-ruby22-ruby-0:2.2.9-19.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-ruby23-ruby-0:2.3.6-67.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSFixed in: rh-ruby22-ruby-0:2.2.9-19.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSFixed in: rh-ruby23-ruby-0:2.3.6-67.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: rh-ruby22-ruby-0:2.2.9-19.el7
View patch
rubygemspatch availablevia ghsa
Product: opensslFixed in: 2.0.0
redhatend of lifevia redhat_api
Product: Red Hat Subscription Asset ManagerFixed in: ruby193-ruby

Vendor Advisories (2)

rubygemsGHSA-v6rp-3r3v-hf4phigh

Ruby OpenSSL DoS Vulnerability

May 14, 2022
redhatCVE-2017-14033Moderate

ruby: Buffer underrun in OpenSSL ASN1 decode

Sep 14, 2017

References

access.redhat.com / errata/RHSA-2018:0378
access.redhat.com / errata/RHSA-2018:0583
access.redhat.com / errata/RHSA-2018:0585
lists.debian.org / debian-lts-announce/2018/07/msg00012.html
security.gentoo.org / glsa/201710-18
debian.org / security/2017/dsa-4031
ruby-lang.org / en/news/2017/09/14/openssl-asn1-buffer-underrun-cve-2017-14033
MitigationVendor Advisory
ruby-lang.org / en/news/2017/09/14/ruby-2-2-8-released
PatchRelease NotesVendor Advisory
ruby-lang.org / en/news/2017/09/14/ruby-2-3-5-released
PatchRelease NotesVendor Advisory
securityfocus.com / bid/100868
Third Party AdvisoryVDB Entry
securitytracker.com / id/1039363
Third Party AdvisoryVDB Entry
securitytracker.com / id/1042004