Details of VAR-201811-0516

ID

VAR-201811-0516

CVE

CVE-2018-19417

TITLE

Contiki-NG Buffer error vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2018-014267

DESCRIPTION

An issue was discovered in the MQTT server in Contiki-NG before 4.2. The function parse_publish_vhdr() that parses MQTT PUBLISH messages with a variable length header uses memcpy to input data into a fixed size buffer. The allocated buffer can fit only MQTT_MAX_TOPIC_LENGTH (default 64) bytes, and a length check is missing. This could lead to Remote Code Execution via a stack-smashing attack (overwriting the function return address). Contiki-NG does not separate the MQTT server from other servers and the OS modules, so access to all memory regions is possible. Contiki-NG Contains a buffer error vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Contiki-NG is an open source cross-platform operating system for the next generation of IoT devices. MQTT Server is one of the message queue transfer servers. Contiki-NG MQTT servers prior to 4.2 have a stack-based buffer overflow vulnerability. An attacker could use this vulnerability to execute code

Trust: 2.79

sources: NVD: CVE-2018-19417 // JVNDB: JVNDB-2018-014267 // CNVD: CNVD-2019-00328 // CNNVD: CNNVD-201811-631 // VULMON: CVE-2018-19417

IOT TAXONOMY

category:

['IoT']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2019-00328

AFFECTED PRODUCTS

vendor:

contiki ng

model:

contiki-ng

scope:

version:

4.2

Trust: 2.4

sources: CNVD: CNVD-2019-00328 // JVNDB: JVNDB-2018-014267 // NVD: CVE-2018-19417

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-19417
value:	CRITICAL
Trust: 1.0
NVD:	CVE-2018-19417
value:	CRITICAL
Trust: 0.8
CNVD:	CNVD-2019-00328
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-201811-631
value:	CRITICAL
Trust: 0.6
VULMON:	CVE-2018-19417
value:	HIGH
Trust: 0.1

nvd@nist.gov:	CVE-2018-19417
severity:	HIGH
baseScore:	10.0
vectorString:	AV:N/AC:L/AU:N/C:C/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.9
CNVD:	CNVD-2019-00328
severity:	HIGH
baseScore:	7.5
vectorString:	AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2018-19417
baseSeverity:	CRITICAL
baseScore:	10.0
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	CHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	6.0
version:	3.0
Trust: 1.8

sources: CNVD: CNVD-2019-00328 // VULMON: CVE-2018-19417 // JVNDB: JVNDB-2018-014267 // CNNVD: CNNVD-201811-631 // NVD: CVE-2018-19417

PROBLEMTYPE DATA

problemtype:

CWE-119

Trust: 1.8

sources: JVNDB: JVNDB-2018-014267 // NVD: CVE-2018-19417

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-201811-631

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-014267

PATCH

title:	Stack based buffer overflow while parsing MQTT messages (parsing PUBLISH message with variable length header) #600	url:	https://github.com/contiki-ng/contiki-ng/issues/600	Trust: 0.8
title:	Patch for Contiki-NG Buffer Overflow Vulnerability (CNVD-2019-00328)	url:	https://www.cnvd.org.cn/patchInfo/show/149187	Trust: 0.6
title:	Contiki-NG MQTT Server Buffer Error Vulnerability Fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=86963	Trust: 0.6

sources: CNVD: CNVD-2019-00328 // JVNDB: JVNDB-2018-014267 // CNNVD: CNNVD-201811-631

EXTERNAL IDS

db:	NVD	id:	CVE-2018-19417	Trust: 3.1
db:	JVNDB	id:	JVNDB-2018-014267	Trust: 0.8
db:	CNVD	id:	CNVD-2019-00328	Trust: 0.6
db:	CNNVD	id:	CNNVD-201811-631	Trust: 0.6
db:	VULMON	id:	CVE-2018-19417	Trust: 0.1

sources: CNVD: CNVD-2019-00328 // VULMON: CVE-2018-19417 // JVNDB: JVNDB-2018-014267 // CNNVD: CNNVD-201811-631 // NVD: CVE-2018-19417

REFERENCES

url:	https://github.com/contiki-ng/contiki-ng/issues/600	Trust: 1.7
url:	https://nvd.nist.gov/vuln/detail/cve-2018-19417	Trust: 1.4
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-19417	Trust: 0.8
url:	https://cwe.mitre.org/data/definitions/119.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: CNVD: CNVD-2019-00328 // VULMON: CVE-2018-19417 // JVNDB: JVNDB-2018-014267 // CNNVD: CNNVD-201811-631 // NVD: CVE-2018-19417

SOURCES

db:	CNVD	id:	CNVD-2019-00328
db:	VULMON	id:	CVE-2018-19417
db:	JVNDB	id:	JVNDB-2018-014267
db:	CNNVD	id:	CNNVD-201811-631
db:	NVD	id:	CVE-2018-19417

LAST UPDATE DATE

2024-11-23T22:45:09.052000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2019-00328	date:	2019-01-04T00:00:00
db:	VULMON	id:	CVE-2018-19417	date:	2019-02-04T00:00:00
db:	JVNDB	id:	JVNDB-2018-014267	date:	2019-03-15T00:00:00
db:	CNNVD	id:	CNNVD-201811-631	date:	2019-02-13T00:00:00
db:	NVD	id:	CVE-2018-19417	date:	2024-11-21T03:57:53.160

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2019-00328	date:	2019-01-04T00:00:00
db:	VULMON	id:	CVE-2018-19417	date:	2018-11-21T00:00:00
db:	JVNDB	id:	JVNDB-2018-014267	date:	2019-03-15T00:00:00
db:	CNNVD	id:	CNNVD-201811-631	date:	2018-11-22T00:00:00
db:	NVD	id:	CVE-2018-19417	date:	2018-11-21T20:29:00.307