Details of VAR-202105-0692

ID

VAR-202105-0692

CVE

CVE-2021-27386

TITLE

Vulnerability regarding lack of memory release after expiration in multiple Siemens products

Trust: 0.8

sources: JVNDB: JVNDB-2021-006951

DESCRIPTION

A vulnerability has been identified in SIMATIC HMI Comfort Outdoor Panels V15 7\" & 15\" (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Outdoor Panels V16 7\" & 15\" (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI Comfort Panels V15 4\" - 22\" (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Panels V16 4\" - 22\" (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI KTP Mobile Panels V15 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V15.1 Update 6), SIMATIC HMI KTP Mobile Panels V16 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V16 Update 4), SIMATIC WinCC Runtime Advanced V15 (All versions < V15.1 Update 6), SIMATIC WinCC Runtime Advanced V16 (All versions < V16 Update 4), SINAMICS GH150 (All versions), SINAMICS GL150 (with option X30) (All versions), SINAMICS GM150 (with option X30) (All versions), SINAMICS SH150 (All versions), SINAMICS SL150 (All versions), SINAMICS SM120 (All versions), SINAMICS SM150 (All versions), SINAMICS SM150i (All versions). SmartVNC has a heap allocation leak vulnerability in the device layout handler on client side, which could result in a Denial-of-Service condition. Several Siemens products are vulnerable to a lack of memory release after expiration.Denial of service (DoS) It may be put into a state. Siemens SmartVNC is an industrial control equipment of Germany's Siemens (Siemens) company. Provides an access to the smartserver function in the HMI. Attackers can use the vulnerability to cause a denial of service. Pillow is a Python-based image processing library. There is currently no information about this vulnerability, please feel free to follow CNNVD or manufacturer announcements

Trust: 2.79

sources: NVD: CVE-2021-27386 // JVNDB: JVNDB-2021-006951 // CNVD: CNVD-2021-67537 // CNNVD: CNNVD-202104-975 // VULMON: CVE-2021-27386

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-67537

AFFECTED PRODUCTS

vendor:	siemens	model:	simatic wincc runtime advanced	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700f	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp400f	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 15\"	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic wincc runtime advanced	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	sinamics sl150	scope:	eq	version:	*	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700f	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900f	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 15\"	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 7\"	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 4\"	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700f	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	sinamics gm150	scope:	eq	version:	*	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900f	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 22\"	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 7\"	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic wincc runtime advanced	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 4\"	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700f	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp400f	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	sinamics sm150	scope:	eq	version:	*	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 22\"	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 15\"	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	sinamics sm150i	scope:	eq	version:	*	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 4\"	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic wincc runtime advanced	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 15\"	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp400f	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	sinamics gh150	scope:	eq	version:	*	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 7\"	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 4\"	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	sinamics gl150	scope:	eq	version:	*	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900f	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 22\"	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 7\"	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	sinamics sm120	scope:	eq	version:	*	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900f	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp400f	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 22\"	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	sinamics sh150	scope:	eq	version:	*	Trust: 1.0
vendor:	シーメンス	model:	sinamics sh150	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	sinamics sl150	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	sinamics sm120	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	sinamics sm150i	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	simatic hmi comfort outdoor panels 7"	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	sinamics gh150	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	sinamics sm150	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	sinamics gl150	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	sinamics gm150	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	simatic wincc runtime advanced	scope:	-	version:	-	Trust: 0.8
vendor:	siemens	model:	sinamics sl150	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	sinamics sm150	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	sinamics sm150i	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	sinamics gh150	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	sinamics gl150 (with option	scope:	eq	version:	x30)	Trust: 0.6
vendor:	siemens	model:	sinamics gm150 (with option	scope:	eq	version:	x30)	Trust: 0.6
vendor:	siemens	model:	sinamics sh150	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	sinamics sm120	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2021-67537 // JVNDB: JVNDB-2021-006951 // NVD: CVE-2021-27386

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-27386
value:	HIGH
Trust: 1.0
NVD:	CVE-2021-27386
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2021-67537
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202104-975
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202105-477
value:	HIGH
Trust: 0.6
VULMON:	CVE-2021-27386
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2021-27386
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.9
CNVD:	CNVD-2021-67537
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2021-27386
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	3.6
version:	3.1
Trust: 1.0
NVD:	CVE-2021-27386
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2021-67537 // VULMON: CVE-2021-27386 // JVNDB: JVNDB-2021-006951 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202105-477 // NVD: CVE-2021-27386

PROBLEMTYPE DATA

problemtype:	CWE-401	Trust: 1.0
problemtype:	Lack of free memory after expiration (CWE-401) [NVD Evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2021-006951 // NVD: CVE-2021-27386

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202105-477

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202104-975

PATCH

title:	SSA-286838 Siemens Security Advisory	url:	https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf	Trust: 0.8
title:	Patch for Siemens SmartVNC heap allocation leak vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/285861	Trust: 0.6
title:	Siemens SmartVNC Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=151556	Trust: 0.6
title:	Siemens Security Advisories: Siemens Security Advisory	url:	https://vulmon.com/vendoradvisory?qidtp=siemens_security_advisories&qid=43c9c77785b8d29daef02185f41ca476	Trust: 0.1
title:	Siemens Security Advisories: Siemens Security Advisory	url:	https://vulmon.com/vendoradvisory?qidtp=siemens_security_advisories&qid=9465a8ef1f8c1b0042244cb02cfe271e	Trust: 0.1
title:	CVE-2021-27386	url:	https://github.com/JamesGeee/CVE-2021-27386	Trust: 0.1

sources: CNVD: CNVD-2021-67537 // VULMON: CVE-2021-27386 // JVNDB: JVNDB-2021-006951 // CNNVD: CNNVD-202105-477

EXTERNAL IDS

db:	NVD	id:	CVE-2021-27386	Trust: 3.9
db:	ICS CERT	id:	ICSA-21-131-12	Trust: 2.4
db:	SIEMENS	id:	SSA-286838	Trust: 2.3
db:	SIEMENS	id:	SSA-538778	Trust: 1.7
db:	JVN	id:	JVNVU91051134	Trust: 0.8
db:	JVNDB	id:	JVNDB-2021-006951	Trust: 0.8
db:	CNVD	id:	CNVD-2021-67537	Trust: 0.6
db:	CS-HELP	id:	SB2021041363	Trust: 0.6
db:	CNNVD	id:	CNNVD-202104-975	Trust: 0.6
db:	CS-HELP	id:	SB2021051206	Trust: 0.6
db:	ICS CERT	id:	ICSA-21-131-04	Trust: 0.6
db:	CNNVD	id:	CNNVD-202105-477	Trust: 0.6
db:	VULMON	id:	CVE-2021-27386	Trust: 0.1

sources: CNVD: CNVD-2021-67537 // VULMON: CVE-2021-27386 // JVNDB: JVNDB-2021-006951 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202105-477 // NVD: CVE-2021-27386

REFERENCES

url:	https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf	Trust: 2.3
url:	https://us-cert.cisa.gov/ics/advisories/icsa-21-131-12	Trust: 2.2
url:	https://cert-portal.siemens.com/productcert/pdf/ssa-538778.pdf	Trust: 1.7
url:	https://jvn.jp/vu/jvnvu91051134/	Trust: 0.8
url:	https://nvd.nist.gov/vuln/detail/cve-2021-27386	Trust: 0.8
url:	https://www.cisa.gov/uscert/ics/advisories/icsa-21-131-12	Trust: 0.8
url:	https://www.cybersecurity-help.cz/vdb/sb2021041363	Trust: 0.6
url:	https://www.cybersecurity-help.cz/vdb/sb2021051206	Trust: 0.6
url:	https://us-cert.cisa.gov/ics/advisories/icsa-21-131-04	Trust: 0.6
url:	https://vigilance.fr/vulnerability/smartvnc-multiple-vulnerabilities-35360	Trust: 0.6
url:	https://cwe.mitre.org/data/definitions/401.html	Trust: 0.1
url:	https://github.com/jamesgeee/cve-2021-27386	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1
url:	https://cert-portal.siemens.com/productcert/txt/ssa-286838.txt	Trust: 0.1

sources: CNVD: CNVD-2021-67537 // VULMON: CVE-2021-27386 // JVNDB: JVNDB-2021-006951 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202105-477 // NVD: CVE-2021-27386

CREDITS

Siemens reported these vulnerabilities to CISA.

Trust: 0.6

sources: CNNVD: CNNVD-202105-477

SOURCES

db:	CNVD	id:	CNVD-2021-67537
db:	VULMON	id:	CVE-2021-27386
db:	JVNDB	id:	JVNDB-2021-006951
db:	CNNVD	id:	CNNVD-202104-975
db:	CNNVD	id:	CNNVD-202105-477
db:	NVD	id:	CVE-2021-27386

LAST UPDATE DATE

2024-08-14T12:18:07.716000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-67537	date:	2022-01-05T00:00:00
db:	VULMON	id:	CVE-2021-27386	date:	2021-05-21T00:00:00
db:	JVNDB	id:	JVNDB-2021-006951	date:	2022-01-26T07:30:00
db:	CNNVD	id:	CNNVD-202104-975	date:	2021-04-14T00:00:00
db:	CNNVD	id:	CNNVD-202105-477	date:	2021-10-13T00:00:00
db:	NVD	id:	CVE-2021-27386	date:	2022-01-04T17:22:06.867

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-67537	date:	2021-09-02T00:00:00
db:	VULMON	id:	CVE-2021-27386	date:	2021-05-12T00:00:00
db:	JVNDB	id:	JVNDB-2021-006951	date:	2022-01-26T00:00:00
db:	CNNVD	id:	CNNVD-202104-975	date:	2021-04-13T00:00:00
db:	CNNVD	id:	CNNVD-202105-477	date:	2021-05-11T00:00:00
db:	NVD	id:	CVE-2021-27386	date:	2021-05-12T14:15:11.767