CVE-2017-14064

CRITICAL

Ruby < 2.2.7, 2.3.x < 2.3.4, 2.4.x < 2.4.1 - Memory Exposure via JSON.generate

Title source: llm
STIX 2.1

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.

References (16)

Core 16
Core References
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3685-1/
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:0585
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2017/dsa-3966
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:0378
Exploit, Third Party Advisory x_refsource_misc
https://hackerone.com/reports/209949
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1042004
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1039363
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:3485
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:0583
Issue Tracking, Patch, Vendor Advisory x_refsource_misc
https://bugs.ruby-lang.org/issues/13853
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/100890
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201710-18

Scores

CVSS v3 9.8
EPSS 0.0945
EPSS Percentile 94.8%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-119
Status published
Products (23)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 17.10
debian/debian_linux 8.0
debian/debian_linux 9.0
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
... and 13 more
Published Aug 31, 2017
Tracked Since Feb 18, 2026