fkie_cve-2020-25656
Vulnerability from fkie_nvd
Published
2020-12-02 01:15
Modified
2024-11-21 05:18
Severity ?
Summary
A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
linux | linux_kernel | * | |
linux | linux_kernel | 5.10 | |
redhat | enterprise_linux | 7.0 | |
redhat | enterprise_linux | 8.0 | |
debian | debian_linux | 9.0 | |
starwindsoftware | starwind_virtual_san | v8 | |
starwindsoftware | starwind_virtual_san | v8 | |
starwindsoftware | starwind_virtual_san | v8 | |
starwindsoftware | starwind_virtual_san | v8 | |
starwindsoftware | starwind_virtual_san | v8 | |
starwindsoftware | starwind_virtual_san | v8 |
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A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality." }, { "lang": "es", "value": "Se encontr\u00f3 un fallo en el kernel de Linux.\u0026#xa0;Se encontr\u00f3 un uso de la memoria previamente liberada en la manera en que el subsistema de la consola estaba usando ioctls KDGKBSENT y KDSKBSENT.\u0026#xa0;Un usuario local podr\u00eda usar este fallo para obtener acceso a la memoria de lectura fuera de los l\u00edmites.\u0026#xa0;La mayor amenaza de esta vulnerabilidad es la confidencialidad de los datos" } ], "id": "CVE-2020-25656", "lastModified": "2024-11-21T05:18:22.093", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "LOW", "cvssData": { "accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 1.9, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0" }, "exploitabilityScore": 3.4, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV31": [ { "cvssData": { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N", "version": "3.1" }, "exploitabilityScore": 0.5, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2020-12-02T01:15:12.607", "references": [ { "source": "secalert@redhat.com", "tags": [ "Exploit", "Issue Tracking", "Patch", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1888726" }, { "source": "secalert@redhat.com", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html" }, { "source": "secalert@redhat.com", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html" }, { "source": "secalert@redhat.com", "tags": [ "Exploit", "Mailing List", "Third Party Advisory" ], "url": "https://lkml.org/lkml/2020/10/16/84" }, { "source": "secalert@redhat.com", "tags": [ "Mailing List", "Patch", "Third Party Advisory" ], "url": "https://lkml.org/lkml/2020/10/29/528" }, { "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ], "url": "https://www.starwindsoftware.com/security/sw-20210325-0006/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit", "Issue Tracking", "Patch", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1888726" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit", "Mailing List", "Third Party Advisory" ], "url": "https://lkml.org/lkml/2020/10/16/84" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Patch", "Third Party Advisory" ], "url": "https://lkml.org/lkml/2020/10/29/528" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://www.starwindsoftware.com/security/sw-20210325-0006/" } ], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-416" } ], "source": "secalert@redhat.com", "type": "Primary" }, { "description": [ { "lang": "en", "value": "CWE-416" } ], "source": "nvd@nist.gov", "type": "Secondary" } ] }
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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.