CVE-2017-14064
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (9.45%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 9.45% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- ruby-lang/ruby · debian/debian linux · canonical/ubuntu linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation
- Source
- cve@mitre.org
EPSS 9.4% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.