gsd-2020-26541
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database (aka dbx) protection mechanism. This affects certs/blacklist.c and certs/system_keyring.c.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-26541",
"description": "The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database (aka dbx) protection mechanism. This affects certs/blacklist.c and certs/system_keyring.c.",
"id": "GSD-2020-26541",
"references": [
"https://www.suse.com/security/cve/CVE-2020-26541.html",
"https://access.redhat.com/errata/RHBA-2021:2854",
"https://access.redhat.com/errata/RHSA-2021:2719",
"https://access.redhat.com/errata/RHSA-2021:2718",
"https://access.redhat.com/errata/RHSA-2021:2666",
"https://access.redhat.com/errata/RHSA-2021:2599",
"https://access.redhat.com/errata/RHSA-2021:2570",
"https://ubuntu.com/security/CVE-2020-26541",
"https://advisories.mageia.org/CVE-2020-26541.html",
"https://security.archlinux.org/CVE-2020-26541",
"https://linux.oracle.com/cve/CVE-2020-26541.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-26541"
],
"details": "The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database (aka dbx) protection mechanism. This affects certs/blacklist.c and certs/system_keyring.c.",
"id": "GSD-2020-26541",
"modified": "2023-12-13T01:22:08.769372Z",
"schema_version": "1.4.0"
}
},
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"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2020-26541",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
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"description": {
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{
"lang": "eng",
"value": "The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database (aka dbx) protection mechanism. This affects certs/blacklist.c and certs/system_keyring.c."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AC:L/AV:L/A:H/C:H/I:H/PR:H/S:U/UI:R",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
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"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://lkml.org/lkml/2020/9/15/1871",
"refsource": "MISC",
"url": "https://lkml.org/lkml/2020/9/15/1871"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "5.8.13",
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2020-26541"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database (aka dbx) protection mechanism. This affects certs/blacklist.c and certs/system_keyring.c."
}
]
},
"problemtype": {
"problemtype_data": [
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"value": "NVD-CWE-Other"
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}
]
},
"references": {
"reference_data": [
{
"name": "https://lkml.org/lkml/2020/9/15/1871",
"refsource": "MISC",
"tags": [
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"Vendor Advisory"
],
"url": "https://lkml.org/lkml/2020/9/15/1871"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 6.9,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.4,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": true
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 0.6,
"impactScore": 5.9
}
},
"lastModifiedDate": "2020-10-05T02:17Z",
"publishedDate": "2020-10-02T19:15Z"
}
}
}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
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- 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.