fkie_cve-2021-45485
Vulnerability from fkie_nvd
Published
2021-12-25 02:15
Modified
2024-11-21 06:32
Severity ?
Summary
In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses.
References
Impacted products
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information leak because of certain use of a hash table which, although big, doesn\u0027t properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses." }, { "lang": "es", "value": "En la implementaci\u00f3n de IPv6 en el kernel de Linux versiones anteriores a 5.13.3, el archivo net/ipv6/output_core.c presenta un filtrado de informaci\u00f3n debido a determinado uso de una tabla hash que, aunque es grande, no considera apropiadamente que atacantes basados en IPv6 pueden elegir t\u00edpicamente entre muchas direcciones de origen IPv6" } ], "id": "CVE-2021-45485", "lastModified": "2024-11-21T06:32:18.733", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0" }, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1" }, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2021-12-25T02:15:06.667", "references": [ { "source": "cve@mitre.org", "tags": [ "Technical Description", "Third Party Advisory" ], "url": "https://arxiv.org/pdf/2112.09604.pdf" }, { "source": "cve@mitre.org", "tags": [ "Release Notes", "Vendor Advisory" ], "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3" }, { "source": "cve@mitre.org", "tags": [ "Patch", "Vendor Advisory" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62f20e068ccc50d6ab66fdb72ba90da2b9418c99" }, { "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20220121-0001/" }, { "source": "cve@mitre.org", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://www.oracle.com/security-alerts/cpujul2022.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Technical Description", "Third Party Advisory" ], "url": "https://arxiv.org/pdf/2112.09604.pdf" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Release Notes", "Vendor Advisory" ], "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Vendor Advisory" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62f20e068ccc50d6ab66fdb72ba90da2b9418c99" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20220121-0001/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://www.oracle.com/security-alerts/cpujul2022.html" } ], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-327" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
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Sightings
Author | Source | Type | Date |
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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.