FKIE_CVE-2018-16868
Vulnerability from fkie_nvd - Published: 2018-12-03 14:29 - Updated: 2024-11-21 03:53
Severity ?
Summary
A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in some cases downgrade any TLS connections to a vulnerable server.
References
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E3BD288F-03CF-4D4B-ACFD-285972068291",
"versionEndIncluding": "3.6.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in some cases downgrade any TLS connections to a vulnerable server."
},
{
"lang": "es",
"value": "Se ha detectado un ataque de or\u00e1culo de relleno basado en canales laterales de tipo Bleichenbacher en la manera en la que gnutls maneja la verificaci\u00f3n de los datos PKCS#1 v1.5 descifrados de un cifrado RSA. Un atacante que sea capaz de ejecutar un proceso en el mismo n\u00facleo f\u00edsico que el proceso v\u00edctima podr\u00eda usarlo para extraer texto plano o, en algunos casos, desactualizar algunas conexiones TLS a un servidor vulnerable."
}
],
"id": "CVE-2018-16868",
"lastModified": "2024-11-21T03:53:29.250",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 3.3,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 3.4,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "PHYSICAL",
"availabilityImpact": "NONE",
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:P/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N",
"version": "3.0"
},
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"source": "secalert@redhat.com",
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"cvssMetricV31": [
{
"cvssData": {
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"baseScore": 5.6,
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"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
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"scope": "CHANGED",
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"vectorString": "CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 0.4,
"impactScore": 4.7,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2018-12-03T14:29:00.333",
"references": [
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"source": "secalert@redhat.com",
"tags": [
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"url": "http://cat.eyalro.net/"
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{
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"tags": [
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{
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"url": "http://www.securityfocus.com/bid/106080"
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{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16868"
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{
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{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16868"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-203"
}
],
"source": "secalert@redhat.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-203"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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