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": [
"CVE-2018-0495"
],
"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"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "security@debian.org",
"ID": "CVE-2018-0495",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3",
"version": {
"version_data": [
{
"version_value": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "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."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "side-channel attack"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965",
"refsource": "MISC",
"url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965"
},
{
"name": "1041144",
"refsource": "SECTRACK",
"url": "http://www.securitytracker.com/id/1041144"
},
{
"name": "USN-3850-1",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/3850-1/"
},
{
"name": "1041147",
"refsource": "SECTRACK",
"url": "http://www.securitytracker.com/id/1041147"
},
{
"name": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/",
"refsource": "MISC",
"url": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/"
},
{
"name": "USN-3689-1",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/3689-1/"
},
{
"name": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html",
"refsource": "MISC",
"url": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html"
},
{
"name": "USN-3689-2",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/3689-2/"
},
{
"name": "USN-3692-2",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/3692-2/"
},
{
"name": "[debian-lts-announce] 20180629 [SECURITY] [DLA 1405-1] libgcrypt20 security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html"
},
{
"name": "DSA-4231",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2018/dsa-4231"
},
{
"name": "RHSA-2018:3505",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2018:3505"
},
{
"name": "USN-3850-2",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/3850-2/"
},
{
"name": "USN-3692-1",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/3692-1/"
},
{
"name": "RHSA-2018:3221",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2018:3221"
},
{
"name": "https://dev.gnupg.org/T4011",
"refsource": "MISC",
"url": "https://dev.gnupg.org/T4011"
},
{
"name": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html",
"refsource": "MISC",
"url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
},
{
"name": "RHSA-2019:1297",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:1297"
},
{
"name": "RHSA-2019:1296",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:1296"
},
{
"name": "RHSA-2019:1543",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:1543"
},
{
"name": "RHSA-2019:2237",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:2237"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "1.8.3",
"versionStartIncluding": "1.8.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "1.7.10",
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:redhat:ansible_tower:3.3:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:oracle:traffic_director:11.1.1.9.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "security@debian.org",
"ID": "CVE-2018-0495"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "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."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-203"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/",
"refsource": "MISC",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/"
},
{
"name": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html",
"refsource": "MISC",
"tags": [
"Vendor Advisory"
],
"url": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html"
},
{
"name": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965",
"refsource": "MISC",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965"
},
{
"name": "https://dev.gnupg.org/T4011",
"refsource": "MISC",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://dev.gnupg.org/T4011"
},
{
"name": "DSA-4231",
"refsource": "DEBIAN",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2018/dsa-4231"
},
{
"name": "USN-3689-2",
"refsource": "UBUNTU",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3689-2/"
},
{
"name": "USN-3689-1",
"refsource": "UBUNTU",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3689-1/"
},
{
"name": "1041147",
"refsource": "SECTRACK",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securitytracker.com/id/1041147"
},
{
"name": "1041144",
"refsource": "SECTRACK",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securitytracker.com/id/1041144"
},
{
"name": "USN-3692-2",
"refsource": "UBUNTU",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3692-2/"
},
{
"name": "USN-3692-1",
"refsource": "UBUNTU",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3692-1/"
},
{
"name": "[debian-lts-announce] 20180629 [SECURITY] [DLA 1405-1] libgcrypt20 security update",
"refsource": "MLIST",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html"
},
{
"name": "RHSA-2018:3221",
"refsource": "REDHAT",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2018:3221"
},
{
"name": "RHSA-2018:3505",
"refsource": "REDHAT",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2018:3505"
},
{
"name": "USN-3850-1",
"refsource": "UBUNTU",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3850-1/"
},
{
"name": "USN-3850-2",
"refsource": "UBUNTU",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3850-2/"
},
{
"name": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html",
"refsource": "MISC",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
},
{
"name": "RHSA-2019:1297",
"refsource": "REDHAT",
"tags": [],
"url": "https://access.redhat.com/errata/RHSA-2019:1297"
},
{
"name": "RHSA-2019:1296",
"refsource": "REDHAT",
"tags": [],
"url": "https://access.redhat.com/errata/RHSA-2019:1296"
},
{
"name": "RHSA-2019:1543",
"refsource": "REDHAT",
"tags": [],
"url": "https://access.redhat.com/errata/RHSA-2019:1543"
},
{
"name": "RHSA-2019:2237",
"refsource": "REDHAT",
"tags": [],
"url": "https://access.redhat.com/errata/RHSA-2019:2237"
}
]
}
},
"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"
}
}
}
Loading...