ghsa-f8pw-77pg-8gv6
Vulnerability from github
Published
2022-02-10 00:01
Modified
2022-04-13 00:01
Severity ?
Details
A vulnerability exists in System Management Interrupt (SWSMI) handler of InsydeH2O UEFI Firmware code located in SWSMI handler that dereferences gRT (EFI_RUNTIME_SERVICES) pointer to call a GetVariable service, which is located outside of SMRAM. This can result in code execution in SMM (escalating privilege from ring 0 to ring -2).
{ "affected": [], "aliases": [ "CVE-2020-5953" ], "database_specific": { "cwe_ids": [], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2022-02-03T01:15:00Z", "severity": "HIGH" }, "details": "A vulnerability exists in System Management Interrupt (SWSMI) handler of InsydeH2O UEFI Firmware code located in SWSMI handler that dereferences gRT (EFI_RUNTIME_SERVICES) pointer to call a GetVariable service, which is located outside of SMRAM. This can result in code execution in SMM (escalating privilege from ring 0 to ring -2).", "id": "GHSA-f8pw-77pg-8gv6", "modified": "2022-04-13T00:01:12Z", "published": "2022-02-10T00:01:02Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-5953" }, { "type": "WEB", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf" }, { "type": "WEB", "url": "https://security.netapp.com/advisory/ntap-20220222-0005" }, { "type": "WEB", "url": "https://www.insyde.com/products" }, { "type": "WEB", "url": "https://www.insyde.com/security-pledge" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H", "type": "CVSS_V3" } ] }
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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.