gsd-2018-0495
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2018-0495",
"description": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.",
"id": "GSD-2018-0495",
"references": [
"https://www.suse.com/security/cve/CVE-2018-0495.html",
"https://www.debian.org/security/2018/dsa-4231",
"https://access.redhat.com/errata/RHSA-2020:1461",
"https://access.redhat.com/errata/RHSA-2020:1345",
"https://access.redhat.com/errata/RHSA-2020:1267",
"https://access.redhat.com/errata/RHBA-2020:0547",
"https://access.redhat.com/errata/RHSA-2019:2237",
"https://access.redhat.com/errata/RHSA-2019:1543",
"https://access.redhat.com/errata/RHSA-2019:1297",
"https://access.redhat.com/errata/RHSA-2019:1296",
"https://access.redhat.com/errata/RHSA-2018:3221",
"https://ubuntu.com/security/CVE-2018-0495",
"https://advisories.mageia.org/CVE-2018-0495.html",
"https://security.archlinux.org/CVE-2018-0495",
"https://alas.aws.amazon.com/cve/html/CVE-2018-0495.html",
"https://linux.oracle.com/cve/CVE-2018-0495.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
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],
"details": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.",
"id": "GSD-2018-0495",
"modified": "2023-12-13T01:22:24.912091Z",
"schema_version": "1.4.0"
}
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}
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"nvd.nist.gov": {
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},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 1.9,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:M/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 3.4,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "LOW",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.0"
},
"exploitabilityScore": 1.0,
"impactScore": 3.6
}
},
"lastModifiedDate": "2020-08-24T17:37Z",
"publishedDate": "2018-06-13T23:29Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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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.