cve-2021-46908
Vulnerability from cvelistv5
Published
2024-02-27 06:53
Modified
2024-11-04 11:55
Severity ?
EPSS score ?
Summary
bpf: Use correct permission flag for mixed signed bounds arithmetic
References
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Hence this also needs bypass_spec_v1\nflag instead of allow_ptr_leaks." } ], "providerMetadata": { "dateUpdated": "2024-11-04T11:55:39.848Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/4f3ff11204eac0ee23acf64deecb3bad7b0db0c6" }, { "url": "https://git.kernel.org/stable/c/4ccdc6c6cae38b91c871293fb0ed8c6845a61b51" }, { "url": "https://git.kernel.org/stable/c/9601148392520e2e134936e76788fc2a6371e7be" } ], "title": "bpf: Use correct permission flag for mixed signed bounds arithmetic", "x_generator": { "engine": "bippy-9e1c9544281a" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2021-46908", "datePublished": "2024-02-27T06:53:49.541Z", "dateReserved": "2024-02-25T13:45:52.718Z", "dateUpdated": "2024-11-04T11:55:39.848Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-46908\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-02-27T07:15:06.977\",\"lastModified\":\"2024-04-17T17:15:29.787\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbpf: Use correct permission flag for mixed signed bounds arithmetic\\n\\nWe forbid adding unknown scalars with mixed signed bounds due to the\\nspectre v1 masking mitigation. Hence this also needs bypass_spec_v1\\nflag instead of allow_ptr_leaks.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: bpf: use el indicador de permiso correcto para aritm\u00e9tica de los l\u00edmites con signo mixto Prohibimos agregar escalares desconocidos con l\u00edmites con signo mixto debido a la mitigaci\u00f3n de enmascaramiento de Spectre v1. Por lo tanto, esto tambi\u00e9n necesita el indicador bypass_spec_v1 en lugar de enable_ptr_leaks.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.8.0\",\"versionEndExcluding\":\"5.10.32\",\"matchCriteriaId\":\"DE87B38C-0350-471A-8830-58E1E02F7E2E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11.0\",\"versionEndExcluding\":\"5.11.16\",\"matchCriteriaId\":\"3C5242B9-B5BD-4578-AD66-69DF59D54A14\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/4ccdc6c6cae38b91c871293fb0ed8c6845a61b51\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4f3ff11204eac0ee23acf64deecb3bad7b0db0c6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9601148392520e2e134936e76788fc2a6371e7be\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}" } }
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Sightings
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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.