VAR-202106-0699
Vulnerability from variot - Updated: 2023-12-18 10:53Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bounds read can be triggered by 6LoWPAN packets sent to devices running Contiki-NG 4.6 and prior. The IPv6 header decompression function (uncompress_hdr_iphc) does not perform proper boundary checks when reading from the packet buffer. Hence, it is possible to construct a compressed 6LoWPAN packet that will read more bytes than what is available from the packet buffer. As of time of publication, there is not a release with a patch available. Users can apply the patch for this vulnerability out-of-band as a workaround. Contiki-NG Is vulnerable to an out-of-bounds read.Information is obtained and denial of service (DoS) It may be put into a state.
The 6LoWPAN implementation in Contiki-NG 4.6 and earlier versions has an out-of-bounds read vulnerability. No detailed vulnerability details are currently provided. 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. Contiki-NG has a buffer error vulnerability, which originates from the 6LoWPAN message of devices of 4.6 and above that will trigger a read out of range
Show details on source website{
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
"affected_products": {
"@id": "https://www.variotdbs.pl/ref/affected_products"
},
"configurations": {
"@id": "https://www.variotdbs.pl/ref/configurations"
},
"credits": {
"@id": "https://www.variotdbs.pl/ref/credits"
},
"cvss": {
"@id": "https://www.variotdbs.pl/ref/cvss/"
},
"description": {
"@id": "https://www.variotdbs.pl/ref/description/"
},
"exploit_availability": {
"@id": "https://www.variotdbs.pl/ref/exploit_availability/"
},
"external_ids": {
"@id": "https://www.variotdbs.pl/ref/external_ids/"
},
"iot": {
"@id": "https://www.variotdbs.pl/ref/iot/"
},
"iot_taxonomy": {
"@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
},
"patch": {
"@id": "https://www.variotdbs.pl/ref/patch/"
},
"problemtype_data": {
"@id": "https://www.variotdbs.pl/ref/problemtype_data/"
},
"references": {
"@id": "https://www.variotdbs.pl/ref/references/"
},
"sources": {
"@id": "https://www.variotdbs.pl/ref/sources/"
},
"sources_release_date": {
"@id": "https://www.variotdbs.pl/ref/sources_release_date/"
},
"sources_update_date": {
"@id": "https://www.variotdbs.pl/ref/sources_update_date/"
},
"threat_type": {
"@id": "https://www.variotdbs.pl/ref/threat_type/"
},
"title": {
"@id": "https://www.variotdbs.pl/ref/title/"
},
"type": {
"@id": "https://www.variotdbs.pl/ref/type/"
}
},
"@id": "https://www.variotdbs.pl/vuln/VAR-202106-0699",
"affected_products": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/affected_products#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"model": "contiki-ng",
"scope": "lte",
"trust": 1.0,
"vendor": "contiki ng",
"version": "4.6"
},
{
"model": "contiki-ng",
"scope": "eq",
"trust": 0.8,
"vendor": "contiki ng",
"version": null
},
{
"model": "contiki-ng",
"scope": "lte",
"trust": 0.8,
"vendor": "contiki ng",
"version": "4.6 and earlier"
},
{
"model": "contiki-ng",
"scope": "lt",
"trust": 0.6,
"vendor": "contiki ng",
"version": "4.6"
}
],
"sources": [
{
"db": "CNVD",
"id": "CNVD-2021-44273"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-008309"
},
{
"db": "NVD",
"id": "CVE-2021-21410"
}
]
},
"configurations": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/configurations#",
"children": {
"@container": "@list"
},
"cpe_match": {
"@container": "@list"
},
"data": {
"@container": "@list"
},
"nodes": {
"@container": "@list"
}
},
"data": [
{
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "4.6",
"vulnerable": true
}
],
"operator": "OR"
}
]
}
],
"sources": [
{
"db": "NVD",
"id": "CVE-2021-21410"
}
]
},
"cve": "CVE-2021-21410",
"cvss": {
"@context": {
"cvssV2": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
},
"cvssV3": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
},
"severity": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/cvss/severity#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/severity"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"cvssV2": [
{
"acInsufInfo": false,
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"author": "NVD",
"availabilityImpact": "PARTIAL",
"baseScore": 6.4,
"confidentialityImpact": "PARTIAL",
"exploitabilityScore": 10.0,
"impactScore": 4.9,
"integrityImpact": "NONE",
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"trust": 1.0,
"userInteractionRequired": false,
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P",
"version": "2.0"
},
{
"acInsufInfo": null,
"accessComplexity": "Low",
"accessVector": "Network",
"authentication": "None",
"author": "NVD",
"availabilityImpact": "Partial",
"baseScore": 6.4,
"confidentialityImpact": "Partial",
"exploitabilityScore": null,
"id": "CVE-2021-21410",
"impactScore": null,
"integrityImpact": "None",
"obtainAllPrivilege": null,
"obtainOtherPrivilege": null,
"obtainUserPrivilege": null,
"severity": "Medium",
"trust": 0.8,
"userInteractionRequired": null,
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P",
"version": "2.0"
},
{
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"author": "CNVD",
"availabilityImpact": "PARTIAL",
"baseScore": 8.5,
"confidentialityImpact": "COMPLETE",
"exploitabilityScore": 10.0,
"id": "CNVD-2021-44273",
"impactScore": 7.8,
"integrityImpact": "NONE",
"severity": "HIGH",
"trust": 0.6,
"vectorString": "AV:N/AC:L/Au:N/C:C/I:N/A:P",
"version": "2.0"
}
],
"cvssV3": [
{
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"author": "NVD",
"availabilityImpact": "HIGH",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"exploitabilityScore": 3.9,
"impactScore": 5.2,
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"trust": 1.0,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
},
{
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"author": "security-advisories@github.com",
"availabilityImpact": "LOW",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"exploitabilityScore": 3.9,
"impactScore": 4.2,
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"trust": 1.0,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
"version": "3.1"
},
{
"attackComplexity": "Low",
"attackVector": "Network",
"author": "NVD",
"availabilityImpact": "High",
"baseScore": 9.1,
"baseSeverity": "Critical",
"confidentialityImpact": "High",
"exploitabilityScore": null,
"id": "CVE-2021-21410",
"impactScore": null,
"integrityImpact": "None",
"privilegesRequired": "None",
"scope": "Unchanged",
"trust": 0.8,
"userInteraction": "None",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"version": "3.0"
}
],
"severity": [
{
"author": "NVD",
"id": "CVE-2021-21410",
"trust": 1.8,
"value": "CRITICAL"
},
{
"author": "security-advisories@github.com",
"id": "CVE-2021-21410",
"trust": 1.0,
"value": "HIGH"
},
{
"author": "CNVD",
"id": "CNVD-2021-44273",
"trust": 0.6,
"value": "HIGH"
},
{
"author": "CNNVD",
"id": "CNNVD-202104-975",
"trust": 0.6,
"value": "MEDIUM"
},
{
"author": "CNNVD",
"id": "CNNVD-202106-1428",
"trust": 0.6,
"value": "CRITICAL"
}
]
}
],
"sources": [
{
"db": "CNVD",
"id": "CNVD-2021-44273"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-008309"
},
{
"db": "NVD",
"id": "CVE-2021-21410"
},
{
"db": "NVD",
"id": "CVE-2021-21410"
},
{
"db": "CNNVD",
"id": "CNNVD-202104-975"
},
{
"db": "CNNVD",
"id": "CNNVD-202106-1428"
}
]
},
"description": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/description#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bounds read can be triggered by 6LoWPAN packets sent to devices running Contiki-NG 4.6 and prior. The IPv6 header decompression function (\u003ccode\u003euncompress_hdr_iphc\u003c/code\u003e) does not perform proper boundary checks when reading from the packet buffer. Hence, it is possible to construct a compressed 6LoWPAN packet that will read more bytes than what is available from the packet buffer. As of time of publication, there is not a release with a patch available. Users can apply the patch for this vulnerability out-of-band as a workaround. Contiki-NG Is vulnerable to an out-of-bounds read.Information is obtained and denial of service (DoS) It may be put into a state. \n\r\n\r\nThe 6LoWPAN implementation in Contiki-NG 4.6 and earlier versions has an out-of-bounds read vulnerability. No detailed vulnerability details are currently provided. Pillow is a Python-based image processing library. \nThere is currently no information about this vulnerability, please feel free to follow CNNVD or manufacturer announcements. \nContiki-NG has a buffer error vulnerability, which originates from the 6LoWPAN message of devices of 4.6 and above that will trigger a read out of range",
"sources": [
{
"db": "NVD",
"id": "CVE-2021-21410"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-008309"
},
{
"db": "CNVD",
"id": "CNVD-2021-44273"
},
{
"db": "CNNVD",
"id": "CNNVD-202104-975"
},
{
"db": "CNNVD",
"id": "CNNVD-202106-1428"
}
],
"trust": 3.24
},
"external_ids": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/external_ids#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"db": "NVD",
"id": "CVE-2021-21410",
"trust": 3.8
},
{
"db": "JVNDB",
"id": "JVNDB-2021-008309",
"trust": 0.8
},
{
"db": "CNVD",
"id": "CNVD-2021-44273",
"trust": 0.6
},
{
"db": "CS-HELP",
"id": "SB2021041363",
"trust": 0.6
},
{
"db": "CNNVD",
"id": "CNNVD-202104-975",
"trust": 0.6
},
{
"db": "CS-HELP",
"id": "SB2021062409",
"trust": 0.6
},
{
"db": "CNNVD",
"id": "CNNVD-202106-1428",
"trust": 0.6
}
],
"sources": [
{
"db": "CNVD",
"id": "CNVD-2021-44273"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-008309"
},
{
"db": "NVD",
"id": "CVE-2021-21410"
},
{
"db": "CNNVD",
"id": "CNNVD-202104-975"
},
{
"db": "CNNVD",
"id": "CNNVD-202106-1428"
}
]
},
"id": "VAR-202106-0699",
"iot": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/iot#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": true,
"sources": [
{
"db": "CNVD",
"id": "CNVD-2021-44273"
}
],
"trust": 1.08177084
},
"iot_taxonomy": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/iot_taxonomy#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"category": [
"IoT"
],
"sub_category": null,
"trust": 0.6
}
],
"sources": [
{
"db": "CNVD",
"id": "CNVD-2021-44273"
}
]
},
"last_update_date": "2023-12-18T10:53:02.319000Z",
"patch": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/patch#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"title": "Added\u00a0buffer\u00a0boundary\u00a0checks\u00a0for\u00a06LoWPAN\u00a0decompression\u00a0#1482 GitHub",
"trust": 0.8,
"url": "https://github.com/contiki-ng/contiki-ng/pull/1482"
},
{
"title": "Patch for Contiki-NG out-of-bounds read vulnerability",
"trust": 0.6,
"url": "https://www.cnvd.org.cn/patchinfo/show/274526"
},
{
"title": "Contiki-NG Buffer error vulnerability fix",
"trust": 0.6,
"url": "http://www.cnnvd.org.cn/web/xxk/bdxqbyid.tag?id=155318"
}
],
"sources": [
{
"db": "CNVD",
"id": "CNVD-2021-44273"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-008309"
},
{
"db": "CNNVD",
"id": "CNNVD-202106-1428"
}
]
},
"problemtype_data": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"problemtype": "CWE-125",
"trust": 1.0
},
{
"problemtype": "Out-of-bounds read (CWE-125) [ Other ]",
"trust": 0.8
}
],
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2021-008309"
},
{
"db": "NVD",
"id": "CVE-2021-21410"
}
]
},
"references": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/references#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"trust": 1.6,
"url": "https://github.com/contiki-ng/contiki-ng/pull/1482"
},
{
"trust": 1.6,
"url": "https://github.com/contiki-ng/contiki-ng/security/advisories/ghsa-hhwj-2p59-v8p9"
},
{
"trust": 1.4,
"url": "https://nvd.nist.gov/vuln/detail/cve-2021-21410"
},
{
"trust": 0.6,
"url": "https://www.cybersecurity-help.cz/vdb/sb2021041363"
},
{
"trust": 0.6,
"url": "https://www.cybersecurity-help.cz/vdb/sb2021062409"
}
],
"sources": [
{
"db": "CNVD",
"id": "CNVD-2021-44273"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-008309"
},
{
"db": "NVD",
"id": "CVE-2021-21410"
},
{
"db": "CNNVD",
"id": "CNNVD-202104-975"
},
{
"db": "CNNVD",
"id": "CNNVD-202106-1428"
}
]
},
"sources": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#",
"data": {
"@container": "@list"
}
},
"data": [
{
"db": "CNVD",
"id": "CNVD-2021-44273"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-008309"
},
{
"db": "NVD",
"id": "CVE-2021-21410"
},
{
"db": "CNNVD",
"id": "CNNVD-202104-975"
},
{
"db": "CNNVD",
"id": "CNNVD-202106-1428"
}
]
},
"sources_release_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2021-06-23T00:00:00",
"db": "CNVD",
"id": "CNVD-2021-44273"
},
{
"date": "2022-03-11T00:00:00",
"db": "JVNDB",
"id": "JVNDB-2021-008309"
},
{
"date": "2021-06-18T21:15:07.947000",
"db": "NVD",
"id": "CVE-2021-21410"
},
{
"date": "2021-04-13T00:00:00",
"db": "CNNVD",
"id": "CNNVD-202104-975"
},
{
"date": "2021-06-18T00:00:00",
"db": "CNNVD",
"id": "CNNVD-202106-1428"
}
]
},
"sources_update_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2021-06-23T00:00:00",
"db": "CNVD",
"id": "CNVD-2021-44273"
},
{
"date": "2022-03-11T08:51:00",
"db": "JVNDB",
"id": "JVNDB-2021-008309"
},
{
"date": "2021-06-24T19:27:44.063000",
"db": "NVD",
"id": "CVE-2021-21410"
},
{
"date": "2021-04-14T00:00:00",
"db": "CNNVD",
"id": "CNNVD-202104-975"
},
{
"date": "2021-06-28T00:00:00",
"db": "CNNVD",
"id": "CNNVD-202106-1428"
}
]
},
"threat_type": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/threat_type#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "remote",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-202106-1428"
}
],
"trust": 0.6
},
"title": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/title#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "Contiki-NG\u00a0 Out-of-bounds read vulnerability",
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2021-008309"
}
],
"trust": 0.8
},
"type": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/type#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "other",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-202104-975"
}
],
"trust": 0.6
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…