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ID

VAR-202110-0901


CVE

CVE-2020-12141


TITLE

Contiki-NG  Out-of-bounds read vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2020-017369

DESCRIPTION

An out-of-bounds read in the SNMP stack in Contiki-NG 4.4 and earlier allows an attacker to cause a denial of service and potentially disclose information via crafted SNMP packets to snmp_ber_decode_string_len_buffer in os/net/app-layer/snmp/snmp-ber.c. Contiki-NG Exists in an out-of-bounds read vulnerability.Information is obtained and service operation is interrupted (DoS) It may be in a state. Contiki is an open source cross-platform operating system for IoT (Internet of Things) devices. There is a security vulnerability in the SNMP stack in Contiki NG 4.4 and earlier versions, which originated from

Trust: 2.25

sources: NVD: CVE-2020-12141 // JVNDB: JVNDB-2020-017369 // CNNVD: CNNVD-202110-1445 // VULMON: CVE-2020-12141

AFFECTED PRODUCTS

vendor:contiki ngmodel:contiki-ngscope:lteversion:4.4

Trust: 1.0

vendor:contiki ngmodel:contiki-ngscope:eqversion:4.4 before that

Trust: 0.8

vendor:contiki ngmodel:contiki-ngscope:eqversion: -

Trust: 0.8

sources: JVNDB: JVNDB-2020-017369 // NVD: CVE-2020-12141

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2020-12141
value: CRITICAL

Trust: 1.0

NVD: CVE-2020-12141
value: CRITICAL

Trust: 0.8

CNNVD: CNNVD-202110-1445
value: CRITICAL

Trust: 0.6

VULMON: CVE-2020-12141
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2020-12141
severity: MEDIUM
baseScore: 6.4
vectorString: AV:N/AC:L/AU:N/C:P/I:N/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 10.0
impactScore: 4.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

nvd@nist.gov: CVE-2020-12141
baseSeverity: CRITICAL
baseScore: 9.1
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 5.2
version: 3.1

Trust: 1.0

NVD: CVE-2020-12141
baseSeverity: CRITICAL
baseScore: 9.1
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: VULMON: CVE-2020-12141 // JVNDB: JVNDB-2020-017369 // CNNVD: CNNVD-202110-1445 // NVD: CVE-2020-12141

PROBLEMTYPE DATA

problemtype:CWE-125

Trust: 1.0

problemtype:Out-of-bounds read (CWE-125) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2020-017369 // NVD: CVE-2020-12141

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202110-1445

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202110-1445

PATCH

title:Refactored SNMP engine after vulnerabilities GitHuburl:https://github.com/contiki-ng/contiki-ng/commit/12c824386ab60de757de5001974d73b32e19ad71#diff-32367fad664c6118fd5dda77cdf38eedc006cdd7544eca5bbeebe0b99653f8a0

Trust: 0.8

title:Contiki Buffer error vulnerability fixurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=167111

Trust: 0.6

sources: JVNDB: JVNDB-2020-017369 // CNNVD: CNNVD-202110-1445

EXTERNAL IDS

db:NVDid:CVE-2020-12141

Trust: 3.3

db:JVNDBid:JVNDB-2020-017369

Trust: 0.8

db:CNNVDid:CNNVD-202110-1445

Trust: 0.6

db:VULMONid:CVE-2020-12141

Trust: 0.1

sources: VULMON: CVE-2020-12141 // JVNDB: JVNDB-2020-017369 // CNNVD: CNNVD-202110-1445 // NVD: CVE-2020-12141

REFERENCES

url:https://github.com/contiki-ng/contiki-ng/pull/1355

Trust: 1.7

url:https://github.com/contiki-ng/contiki-ng/commit/12c824386ab60de757de5001974d73b32e19ad71#diff-32367fad664c6118fd5dda77cdf38eedc006cdd7544eca5bbeebe0b99653f8a0

Trust: 1.7

url:https://twitter.com/scepticctf

Trust: 1.7

url:https://nvd.nist.gov/vuln/detail/cve-2020-12141

Trust: 1.4

url:https://cwe.mitre.org/data/definitions/125.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

sources: VULMON: CVE-2020-12141 // JVNDB: JVNDB-2020-017369 // CNNVD: CNNVD-202110-1445 // NVD: CVE-2020-12141

SOURCES

db:VULMONid:CVE-2020-12141
db:JVNDBid:JVNDB-2020-017369
db:CNNVDid:CNNVD-202110-1445
db:NVDid:CVE-2020-12141

LAST UPDATE DATE

2024-08-14T13:43:18.139000+00:00


SOURCES UPDATE DATE

db:VULMONid:CVE-2020-12141date:2021-10-22T00:00:00
db:JVNDBid:JVNDB-2020-017369date:2022-09-29T05:00:00
db:CNNVDid:CNNVD-202110-1445date:2021-10-27T00:00:00
db:NVDid:CVE-2020-12141date:2021-10-22T19:09:17.500

SOURCES RELEASE DATE

db:VULMONid:CVE-2020-12141date:2021-10-19T00:00:00
db:JVNDBid:JVNDB-2020-017369date:2022-09-29T00:00:00
db:CNNVDid:CNNVD-202110-1445date:2021-10-19T00:00:00
db:NVDid:CVE-2020-12141date:2021-10-19T16:15:07.613