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

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package	Release	Status
ruby1.9.1 Launchpad, Ubuntu, Debian	upstream	Needs triage
	trusty	Released (1.9.3.484-2ubuntu1.5)
	xenial	Does not exist
	zesty	Does not exist
	artful	Does not exist
	bionic	Does not exist
	Patches: upstream: https://github.com/flori/json/commit/8f782fd8e181d9cfe9387ded43a5ca9692266b85
ruby2.0 Launchpad, Ubuntu, Debian	upstream	Needs triage
	trusty	Released (2.0.0.484-1ubuntu2.10)
	xenial	Does not exist
	zesty	Does not exist
	artful	Does not exist
	bionic	Does not exist
ruby2.3 Launchpad, Ubuntu, Debian	upstream	Needs triage
	trusty	Does not exist
	xenial	Released (2.3.1-2~16.04.5)
	zesty	Ignored (end of life)
	artful	Released (2.3.3-1ubuntu1.2)
	bionic	Does not exist

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

References

Bugs

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