gsd-2021-20225
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-20225",
"description": "A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
"id": "GSD-2021-20225",
"references": [
"https://www.suse.com/security/cve/CVE-2021-20225.html",
"https://www.debian.org/security/2021/dsa-4867",
"https://access.redhat.com/errata/RHSA-2021:3675",
"https://access.redhat.com/errata/RHSA-2021:2790",
"https://access.redhat.com/errata/RHSA-2021:2566",
"https://access.redhat.com/errata/RHSA-2021:1734",
"https://access.redhat.com/errata/RHSA-2021:0704",
"https://access.redhat.com/errata/RHSA-2021:0703",
"https://access.redhat.com/errata/RHSA-2021:0702",
"https://access.redhat.com/errata/RHSA-2021:0701",
"https://access.redhat.com/errata/RHSA-2021:0700",
"https://access.redhat.com/errata/RHSA-2021:0699",
"https://access.redhat.com/errata/RHSA-2021:0698",
"https://access.redhat.com/errata/RHSA-2021:0697",
"https://access.redhat.com/errata/RHSA-2021:0696",
"https://ubuntu.com/security/CVE-2021-20225",
"https://advisories.mageia.org/CVE-2021-20225.html",
"https://security.archlinux.org/CVE-2021-20225",
"https://linux.oracle.com/cve/CVE-2021-20225.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"modified": "2023-12-13T01:23:12.247091Z",
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"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.2,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
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"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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"impactScore": 5.9
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},
"lastModifiedDate": "2022-04-18T19:27Z",
"publishedDate": "2021-03-03T17:15Z"
}
}
}
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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.