var-202208-0257
Vulnerability from variot
Contiki-NG is an open-source, cross-platform operating system for IoT devices. In affected versions it is possible to cause a buffer overflow when copying an IPv6 address prefix in the RPL-Classic implementation in Contiki-NG. In order to trigger the vulnerability, the Contiki-NG system must have joined an RPL DODAG. After that, an attacker can send a DAO packet with a Target option that contains a prefix length larger than 128 bits. The problem was fixed after the release of Contiki-NG 4.7. Users unable to upgrade may apply the patch in Contiki-NG PR #1615. Contiki-NG Exists in a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state
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-202208-0257", "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": "lt", "trust": 1.0, "vendor": "contiki ng", "version": "4.8" }, { "model": "contiki-ng", "scope": null, "trust": 0.8, "vendor": "contiki ng", "version": null }, { "model": "contiki-ng", "scope": "eq", "trust": 0.8, "vendor": "contiki ng", "version": "4.8" }, { "model": "contiki-ng", "scope": "eq", "trust": 0.8, "vendor": "contiki ng", "version": null } ], "sources": [ { "db": "JVNDB", "id": "JVNDB-2021-020139" }, { "db": "NVD", "id": "CVE-2021-32771" } ] }, "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": [], "versionEndExcluding": "4.8", "vulnerable": true } ], "operator": "OR" } ] } ], "sources": [ { "db": "NVD", "id": "CVE-2021-32771" } ] }, "cve": "CVE-2021-32771", "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": [], "cvssV3": [ { "attackComplexity": "HIGH", "attackVector": "NETWORK", "author": "NVD", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "exploitabilityScore": 2.2, "impactScore": 5.9, "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "trust": 2.0, "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, { "attackComplexity": "High", "attackVector": "Network", "author": "NVD", "availabilityImpact": "High", "baseScore": 8.1, "baseSeverity": "High", "confidentialityImpact": "High", "exploitabilityScore": null, "id": "CVE-2021-32771", "impactScore": null, "integrityImpact": "High", "privilegesRequired": "None", "scope": "Unchanged", "trust": 0.8, "userInteraction": "None", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0" } ], "severity": [ { "author": "NVD", "id": "CVE-2021-32771", "trust": 1.8, "value": "HIGH" }, { "author": "security-advisories@github.com", "id": "CVE-2021-32771", "trust": 1.0, "value": "HIGH" }, { "author": "CNNVD", "id": "CNNVD-202208-2179", "trust": 0.6, "value": "HIGH" } ] } ], "sources": [ { "db": "JVNDB", "id": "JVNDB-2021-020139" }, { "db": "NVD", "id": "CVE-2021-32771" }, { "db": "NVD", "id": "CVE-2021-32771" }, { "db": "CNNVD", "id": "CNNVD-202208-2179" } ] }, "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 IoT devices. In affected versions it is possible to cause a buffer overflow when copying an IPv6 address prefix in the RPL-Classic implementation in Contiki-NG. In order to trigger the vulnerability, the Contiki-NG system must have joined an RPL DODAG. After that, an attacker can send a DAO packet with a Target option that contains a prefix length larger than 128 bits. The problem was fixed after the release of Contiki-NG 4.7. Users unable to upgrade may apply the patch in Contiki-NG PR #1615. Contiki-NG Exists in a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state", "sources": [ { "db": "NVD", "id": "CVE-2021-32771" }, { "db": "JVNDB", "id": "JVNDB-2021-020139" }, { "db": "CNNVD", "id": "CNNVD-202208-2179" }, { "db": "VULMON", "id": "CVE-2021-32771" } ], "trust": 2.25 }, "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-2021-32771", "trust": 3.3 }, { "db": "JVNDB", "id": "JVNDB-2021-020139", "trust": 0.8 }, { "db": "CNNVD", "id": "CNNVD-202208-2179", "trust": 0.6 }, { "db": "VULMON", "id": "CVE-2021-32771", "trust": 0.1 } ], "sources": [ { "db": "VULMON", "id": "CVE-2021-32771" }, { "db": "JVNDB", "id": "JVNDB-2021-020139" }, { "db": "NVD", "id": "CVE-2021-32771" }, { "db": "CNNVD", "id": "CNNVD-202208-2179" } ] }, "id": "VAR-202208-0257", "iot": { "@context": { "@vocab": "https://www.variotdbs.pl/ref/iot#", "sources": { "@container": "@list", "@context": { "@vocab": "https://www.variotdbs.pl/ref/sources#" } } }, "data": true, "sources": [ { "db": "VARIoT devices database", "id": null } ], "trust": 0.48177084 }, "last_update_date": "2023-12-18T13:00:40.286000Z", "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": "Contiki-NG Security vulnerabilities", "trust": 0.6, "url": "http://www.cnnvd.org.cn/web/xxk/bdxqbyid.tag?id=203551" } ], "sources": [ { "db": "CNNVD", "id": "CNNVD-202208-2179" } ] }, "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-120", "trust": 1.0 }, { "problemtype": "Classic buffer overflow (CWE-120) [ others ]", "trust": 0.8 } ], "sources": [ { "db": "JVNDB", "id": "JVNDB-2021-020139" }, { "db": "NVD", "id": "CVE-2021-32771" } ] }, "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": 2.5, "url": "https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f" }, { "trust": 2.5, "url": "https://github.com/contiki-ng/contiki-ng/security/advisories/ghsa-jqjf-v7v9-xp6w" }, { "trust": 2.5, "url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2fv4.8" }, { "trust": 1.9, "url": "https://github.com/contiki-ng/contiki-ng/pull/1615" }, { "trust": 0.8, "url": "https://nvd.nist.gov/vuln/detail/cve-2021-32771" }, { "trust": 0.6, "url": "https://cxsecurity.com/cveshow/cve-2021-32771/" }, { "trust": 0.1, "url": "https://cwe.mitre.org/data/definitions/120.html" }, { "trust": 0.1, "url": "https://nvd.nist.gov" } ], "sources": [ { "db": "VULMON", "id": "CVE-2021-32771" }, { "db": "JVNDB", "id": "JVNDB-2021-020139" }, { "db": "NVD", "id": "CVE-2021-32771" }, { "db": "CNNVD", "id": "CNNVD-202208-2179" } ] }, "sources": { "@context": { "@vocab": "https://www.variotdbs.pl/ref/sources#", "data": { "@container": "@list" } }, "data": [ { "db": "VULMON", "id": "CVE-2021-32771" }, { "db": "JVNDB", "id": "JVNDB-2021-020139" }, { "db": "NVD", "id": "CVE-2021-32771" }, { "db": "CNNVD", "id": "CNNVD-202208-2179" } ] }, "sources_release_date": { "@context": { "@vocab": "https://www.variotdbs.pl/ref/sources_release_date#", "data": { "@container": "@list" } }, "data": [ { "date": "2022-08-04T00:00:00", "db": "VULMON", "id": "CVE-2021-32771" }, { "date": "2023-09-15T00:00:00", "db": "JVNDB", "id": "JVNDB-2021-020139" }, { "date": "2022-08-04T21:15:07.907000", "db": "NVD", "id": "CVE-2021-32771" }, { "date": "2022-08-04T00:00:00", "db": "CNNVD", "id": "CNNVD-202208-2179" } ] }, "sources_update_date": { "@context": { "@vocab": "https://www.variotdbs.pl/ref/sources_update_date#", "data": { "@container": "@list" } }, "data": [ { "date": "2022-08-04T00:00:00", "db": "VULMON", "id": "CVE-2021-32771" }, { "date": "2023-09-15T08:11:00", "db": "JVNDB", "id": "JVNDB-2021-020139" }, { "date": "2022-08-10T18:08:13.533000", "db": "NVD", "id": "CVE-2021-32771" }, { "date": "2022-08-11T00:00:00", "db": "CNNVD", "id": "CNNVD-202208-2179" } ] }, "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-202208-2179" } ], "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 Classic buffer overflow vulnerability in", "sources": [ { "db": "JVNDB", "id": "JVNDB-2021-020139" } ], "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-202208-2179" } ], "trust": 0.6 } }
Loading…
Loading…
Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.