CVE-2017-14064

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-14. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 9%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

Ruby through 2.2.7, 2.3.x through 2.3.4, and 2.4.x through 2.4.1 can expose arbitrary memory during a JSON.generate call. The issues lies in using strdup in ext/json/ext/generator/generator.c, which will stop after encountering a '\0' byte, returning a pointer to a string of length zero, which is not the length stored in space_len.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
94.9%
KEV
Not listed

Published

August 31, 2017

Last Modified

May 13, 2026

Advisory Details (10)

Auto-updated May 15, 2026
Patch available. Sources: redhat.
generic

HackerOne

https://hackerone.com/reports/209949
generic

Fix arbitrary heap exposure problem · ruby/json@8f782fd · GitHub

https://github.com/flori/json/commit/8f782fd8e181d9cfe9387ded43a5ca9692266b85
generic

Bug #13853: Backport request r58323 - Ruby - Ruby Issue Tracking System

https://bugs.ruby-lang.org/issues/13853
redhat Patch Available
https://access.redhat.com/errata/RHSA-2018:0585
redhat Patch Available
https://access.redhat.com/errata/RHSA-2018:0583
redhat Patch Available

Affected: Red Hat Enterprise Linux 7.

https://access.redhat.com/errata/RHSA-2018:0378
redhat Patch Available
https://access.redhat.com/errata/RHSA-2017:3485
generic
http://www.securitytracker.com/id/1042004
generic
http://www.securitytracker.com/id/1039363
generic
http://www.securityfocus.com/bid/100890

Vendor Advisories for CVE-2017-14064(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(10)

Vendor / EcosystemFixed in / PatchReleasedSource
ubunturuby2.3-tcltk (2.3.1-2~16.04.5) @ xenial2026-05-20ubuntu
ubunturuby1.9.3 (1.9.3.484-2ubuntu1.5) @ trusty2026-05-20ubuntu
ubunturuby2.3-tcltk (2.3.1-2~16.04.10) @ xenial2026-05-20ubuntu
redhatruby4-0-main-4.0.0-33.3.hum12026-04-17redhat
redhatruby3-3-main-3.3.10-23.1.hum12026-04-09redhat
redhatruby3-4-main-3.4.8-31.1.hum12026-04-09redhat
redhatrh-ruby22-ruby-0:2.2.9-19.el72018-03-26redhat
redhatrh-ruby23-ruby-0:2.3.6-67.el72018-03-26redhat
redhatruby-0:2.0.0.648-33.el7_42018-02-28redhat
redhatrh-ruby24-ruby-0:2.4.2-86.el72017-12-19redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Additional Vendor Advisories

(7)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 13× in last 7d / 36× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 108 total refreshes for this CVE.

  1. 2026-07-22 22:06 UTCEG score recompute
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  74. 2026-05-19 11:35 UTCVendor advisory
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Frequently asked(5)

What is CVE-2017-14064?
CVE-2017-14064 is a critical vulnerability published on August 31, 2017. Ruby through 2.2.7, 2.3.x through 2.3.4, and 2.4.x through 2.4.1 can expose arbitrary memory during a JSON.generate call. The issues lies in using strdup in ext/json/ext/generator/generator.c, which will stop after encountering a '\0' byte, returning a pointer to a string of length zero, which is…
When was CVE-2017-14064 disclosed?
CVE-2017-14064 was first published in the National Vulnerability Database on August 31, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-14064 actively exploited?
CVE-2017-14064 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-14064?
CVE-2017-14064 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-14064?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-14064, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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