fkie_cve-2021-25634
Vulnerability from fkie_nvd
Published
2021-10-12 14:15
Modified
2024-11-21 05:55
Severity ?
Summary
LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to modify a digitally signed ODF document to insert an additional signing time timestamp which LibreOffice would incorrectly present as a valid signature signed at the bogus signing time. This issue affects: The Document Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| libreoffice | libreoffice | * | |
| libreoffice | libreoffice | * | |
| debian | debian_linux | 11.0 |
{
"configurations": [
{
"nodes": [
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"cpeMatch": [
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"criteria": "cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*",
"matchCriteriaId": "7CF22E51-8E68-4B58-8AB3-D326C1097E3E",
"versionEndExcluding": "7.0.6",
"versionStartIncluding": "7.0.0",
"vulnerable": true
},
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"criteria": "cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*",
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to modify a digitally signed ODF document to insert an additional signing time timestamp which LibreOffice would incorrectly present as a valid signature signed at the bogus signing time. This issue affects: The Document Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2."
},
{
"lang": "es",
"value": "LibreOffice soporta firmas digitales de documentos ODF y macros dentro de documentos, presentando ayudas visuales de que no se ha producido ninguna alteraci\u00f3n del documento desde la \u00faltima firma y que la firma es v\u00e1lida. Una vulnerabilidad de Comprobaci\u00f3n Inapropiada de Certificados en LibreOffice permit\u00eda a un atacante modificar un documento ODF firmado digitalmente para insertar una marca de tiempo de firma adicional que LibreOffice presentar\u00eda incorrectamente como una firma v\u00e1lida firmada en la hora de firma falsa. Este problema afecta a: Las versiones de LibreOffice 7-0 de The Document Foundation anteriores a 7.0.6; las versiones 7-1 anteriores a 7.1.2"
}
],
"id": "CVE-2021-25634",
"lastModified": "2024-11-21T05:55:11.250",
"metrics": {
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"baseSeverity": "MEDIUM",
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"accessVector": "NETWORK",
"authentication": "NONE",
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"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
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"published": "2021-10-12T14:15:08.290",
"references": [
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"source": "security@documentfoundation.org",
"tags": [
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"url": "https://www.debian.org/security/2021/dsa-4988"
},
{
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"url": "https://www.libreoffice.org/about-us/security/advisories/CVE-2021-25634"
},
{
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"sourceIdentifier": "security@documentfoundation.org",
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],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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.