ghsa-67f6-6h83-3w53
Vulnerability from github
Published
2022-05-24 19:05
Modified
2022-05-24 19:05
Severity ?
Details
An issue was discovered in IdeBusDxe in Insyde InsydeH2O 5.x. Code in system management mode calls a function outside of SMRAM in response to a crafted software SMI, aka Inclusion of Functionality from an Untrusted Control Sphere. Modifying the well-known address of this function allows an attacker to gain control of the system with the privileges of system management mode.
{ "affected": [], "aliases": [ "CVE-2020-27339" ], "database_specific": { "cwe_ids": [ "CWE-269" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2021-06-16T16:15:00Z", "severity": "HIGH" }, "details": "An issue was discovered in IdeBusDxe in Insyde InsydeH2O 5.x. Code in system management mode calls a function outside of SMRAM in response to a crafted software SMI, aka Inclusion of Functionality from an Untrusted Control Sphere. Modifying the well-known address of this function allows an attacker to gain control of the system with the privileges of system management mode.", "id": "GHSA-67f6-6h83-3w53", "modified": "2022-05-24T19:05:29Z", "published": "2022-05-24T19:05:29Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27339" }, { "type": "WEB", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf" }, { "type": "WEB", "url": "https://security.netapp.com/advisory/ntap-20220216-0005" }, { "type": "WEB", "url": "https://www.insyde.com/products" }, { "type": "WEB", "url": "https://www.insyde.com/security-pledge/SA-2021001" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "type": "CVSS_V3" } ] }
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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.