CVE-2017-14064

Name: CVE-2017-14064
Creator: NVD / NIST
Published: 2017-08-31T17:29:00.183+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 9.45%

Last modified Jun 17, 2026

CVE-2017-14064 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 9.45% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

9.45%

94.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Ruby-Lang	Ruby	<= 2.2.7
Ruby-Lang	Ruby	2.3.0
Ruby-Lang	Ruby	2.3.1
Ruby-Lang	Ruby	2.3.2
Ruby-Lang	Ruby	2.3.3
Ruby-Lang	Ruby	2.3.4
Ruby-Lang	Ruby	2.4.0
Ruby-Lang	Ruby	2.4.1
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	17.10
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.4
Redhat	Enterprise Linux Server Aus	7.6
Redhat	Enterprise Linux Server Eus	7.4
Redhat	Enterprise Linux Server Eus	7.5
Redhat	Enterprise Linux Server Eus	7.6
Redhat	Enterprise Linux Server Tus	7.4
Redhat	Enterprise Linux Server Tus	7.6
Redhat	Enterprise Linux Workstation	7.0

References

http://www.securityfocus.com/bid/100890Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039363Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1042004Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2017:3485Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0378Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0583Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0585Third Party Advisory
https://bugs.ruby-lang.org/issues/13853Issue Tracking, Patch, Vendor Advisory
https://github.com/flori/json/commit/8f782fd8e181d9cfe9387ded43a5ca9692266b85Issue Tracking, Patch, Third Party Advisory
https://hackerone.com/reports/209949Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201710-18Third Party Advisory
https://usn.ubuntu.com/3685-1/Third Party Advisory
https://www.debian.org/security/2017/dsa-3966Third Party Advisory
https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-2-8-released/Vendor Advisory
https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-3-5-released/Vendor Advisory
http://www.securityfocus.com/bid/100890Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039363Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1042004Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2017:3485Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0378Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0583Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0585Third Party Advisory
https://bugs.ruby-lang.org/issues/13853Issue Tracking, Patch, Vendor Advisory
https://github.com/flori/json/commit/8f782fd8e181d9cfe9387ded43a5ca9692266b85Issue Tracking, Patch, Third Party Advisory
https://hackerone.com/reports/209949Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201710-18Third Party Advisory
https://usn.ubuntu.com/3685-1/Third Party Advisory
https://www.debian.org/security/2017/dsa-3966Third Party Advisory
https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-2-8-released/Vendor Advisory
https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-3-5-released/Vendor Advisory

Timeline

Published: Aug 31, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-14064?

How severe is CVE-2017-14064?

Severity scoring for CVE-2017-14064 is pending analysis. The EPSS model estimates a 9.45% probability of exploitation in the next 30 days.

How do I fix CVE-2017-14064?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-14064?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST