CVE-2017-14033: ruby-lang ruby
Vulnerability summary
CVE-2017-14033 is a high (CVSS 7.5) vulnerability in ruby-lang ruby. EPSS estimates a 7.73% chance of exploitation in the next 30 days, higher than 94.6% of scored vulnerabilities.
Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 8% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 10 · Related 3Timeline
- 19-09-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The decode method in the OpenSSL::ASN1 module in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows attackers to cause a denial of service (interpreter crash) via a crafted string.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · RubygemsEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
7.73%
Chance of exploitation in the next 30 days
Percentile
95%
Versus all other CVEs
30-day change
No change 0.00 pp
From 7.73% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Alpine2 products
- ruby< 2.4.2-r0 | < 2.2.8-r0 | < 2.3.5-r0
- ruby2.2< 2.2.8-r0
Ubuntu2 products
- ruby1.9.1< 1.9.3.484-2ubuntu1.5
- ruby2.3< 2.3.1-2~16.04.5
Ruby-lang1 product
- rubyEOL2.2.0 | 2.2.0:preview1 | 2.2.0:preview2 | 2.2.0:rc1 | 2.2.1 | 2.2.2 | 2.2.3 | 2.2.4 | 2.2.5 | 2.2.6 | 2.2.7 | 2.3.0 | 2.3.0:preview1 | 2.3.0:preview2 | 2.3.1 | 2.3.2 | 2.3.3 | 2.3.4 | 2.4.0 | 2.4.0:preview1 | 2.4.0:preview2 | 2.4.0:preview3 | 2.4.0:rc1 | 2.4.1
RubyGems1 product
- openssl< 2.0.0
4 vendors · 6 products
References
27 links- www.ruby-lang.org/en/news/2017/09/14/ruby-2-3-5-released/X Refsource CONFIRMPatchRelease NotesVendor Advisory
- www.ruby-lang.org/en/news/2017/09/14/ruby-2-2-8-released/X Refsource CONFIRMPatchRelease NotesVendor Advisory
- www.ruby-lang.org/en/news/2017/09/14/openssl-asn1-buffer-underrun-cve-2017-14033/X Refsource CONFIRMMitigationVendor AdvisoryREPORT
Show all 27 references
- github.com/ruby/opensslPACKAGE