CVE-2015-8863

Publication date 6 May 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Off-by-one error in the tokenadd function in jv_parse.c in jq allows remote attackers to cause a denial of service (crash) via a long JSON-encoded number, which triggers a heap-based buffer overflow.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
jq	18.04 LTS bionic	Not affected
	17.10 artful	Not affected
	17.04 zesty	Ignored end of life
	16.10 yakkety	Ignored end of life
	16.04 LTS xenial	Fixed 1.5+dfsg-1ubuntu0.1
	15.10 wily	Ignored end of life
	14.04 LTS trusty	Fixed 1.3-1.1ubuntu1.1
	12.04 LTS precise	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
jq	Upstream: 8eb1367

Severity score breakdown

CVSS version: CVSS v3.0

Base score 9.8 · Critical

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	9.8 · Critical
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H