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CVE-2017-14064

Published: 31 August 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 not the length stored in space_len.

Priority

Low

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
ruby1.9.1
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

trusty
Released (1.9.3.484-2ubuntu1.5)
upstream Needs triage

xenial Does not exist

zesty Does not exist

Patches:
upstream: https://github.com/flori/json/commit/8f782fd8e181d9cfe9387ded43a5ca9692266b85
ruby2.0
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

trusty
Released (2.0.0.484-1ubuntu2.10)
upstream Needs triage

xenial Does not exist

zesty Does not exist

ruby2.3
Launchpad, Ubuntu, Debian
artful
Released (2.3.3-1ubuntu1.2)
bionic Does not exist

trusty Does not exist

upstream Needs triage

xenial
Released (2.3.1-2~16.04.5)
zesty Ignored
(end of life)

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H