CVE-2021-38576

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Source
https://cve.org/CVERecord?id=CVE-2021-38576
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-38576.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-38576
Downstream
Published
2022-01-03T22:15:09Z
Modified
2026-10-20T10:54:51Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A BIOS bug in firmware for a particular PC model leaves the Platform authorization value empty. This can be used to permanently brick the TPM in multiple ways, as well as to non-permanently DoS the system.

References

Affected packages

Git / github.com/tianocore/edk2

Affected ranges

Type
GIT
Repo
https://github.com/tianocore/edk2
Events
Introduced
cb5f4f45ce1fca390b99dae5c42b9c4c8b53deea
Last Affected
e1999b264f1f9d7230edf2448f757c73da567832
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:tianocore:edk2:201808:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "201808"
                },
                {
                    "last_affected":  "201808"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:tianocore:edk2:201811:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "201811"
                },
                {
                    "last_affected":  "201811"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:tianocore:edk2:201903:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "201903"
                },
                {
                    "last_affected":  "201903"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:tianocore:edk2:201905:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "201905"
                },
                {
                    "last_affected":  "201905"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:tianocore:edk2:201908:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "201908"
                },
                {
                    "last_affected":  "201908"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:tianocore:edk2:201911:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "201911"
                },
                {
                    "last_affected":  "201911"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:tianocore:edk2:202002:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "202002"
                },
                {
                    "last_affected":  "202002"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:tianocore:edk2:202005:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "202005"
                },
                {
                    "last_affected":  "202005"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:tianocore:edk2:202008:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "202008"
                },
                {
                    "last_affected":  "202008"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:tianocore:edk2:202011:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "202011"
                },
                {
                    "last_affected":  "202011"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:tianocore:edk2:202102:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "202102"
                },
                {
                    "last_affected":  "202102"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:tianocore:edk2:202105:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "202105"
                },
                {
                    "last_affected":  "202105"
                }
            ],
            "source":  "CPE_STRING"
        }
    ]
}

Affected versions

Other
201808
201811
201903
201905
201908
201911
202002
202005
202008
202011
202102
202105
edk2-stable201808
edk2-stable201811
edk2-stable201903
edk2-stable201905
edk2-stable201908
edk2-stable201911
edk2-stable202002
edk2-stable202005
edk2-stable202008
edk2-stable202011
edk2-stable202102
edk2-stable202105

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-38576.json"