MediumFix available
openssl — security advisory
The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o).
- Products
- openssl
- Affected versions
- Not specified
- Fixed versions
- 1.0.2o-r1, 1.0.2o-r2
- CVEs
- CVE-2018-0737
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 21:56 UTC · Revision 1
Source evidence
The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o).
osv:ALPINE-CVE-2018-0737
openssl
Fixed versions: 1.0.2o-r1
openssl
Fixed versions: 1.0.2o-r2
openssl
Fixed versions: 1.0.2o-r1
openssl
Fixed versions: 1.0.2o-r1
openssl
Fixed versions: 1.0.2o-r1
openssl
Fixed versions: 1.0.2o-r2
Complete source record
{
"id": "23b99b2f38125821b53e2a10455d9bb1da77771c186d9a9fa14d19a9a5014eae",
"url": "https://osv.dev/vulnerability/ALPINE-CVE-2018-0737",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ALPINE-CVE-2018-0737",
"summary": "The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o).",
"evidence": "osv:ALPINE-CVE-2018-0737",
"products": [
{
"name": {
"value": "openssl",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.0.2o-r1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openssl",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.0.2o-r2",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.0.2o-r1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openssl",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.0.2o-r1",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.0.2o-r2",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "ALPINE-CVE-2018-0737",
"aliases": [
"ALPINE-CVE-2018-0737"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.0.2b"
},
{
"fixed": "1.0.2o-r1"
}
]
}
],
"package": {
"name": "openssl",
"purl": "pkg:apk/alpine/openssl?arch=source",
"ecosystem": "Alpine:v3.3"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-0737.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
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"events": [
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{
"fixed": "1.0.2o-r2"
}
]
}
],
"package": {
"name": "openssl",
"purl": "pkg:apk/alpine/openssl?arch=source",
"ecosystem": "Alpine:v3.4"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-0737.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.0.2b"
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{
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}
]
}
],
"package": {
"name": "openssl",
"purl": "pkg:apk/alpine/openssl?arch=source",
"ecosystem": "Alpine:v3.5"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-0737.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
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"events": [
{
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},
{
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}
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}
],
"package": {
"name": "openssl",
"purl": "pkg:apk/alpine/openssl?arch=source",
"ecosystem": "Alpine:v3.6"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-0737.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
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"events": [
{
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},
{
"fixed": "1.0.2o-r1"
}
]
}
],
"package": {
"name": "openssl",
"purl": "pkg:apk/alpine/openssl?arch=source",
"ecosystem": "Alpine:v3.7"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-0737.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.0.2b"
},
{
"fixed": "1.0.2o-r2"
}
]
}
],
"package": {
"name": "openssl",
"purl": "pkg:apk/alpine/openssl?arch=source",
"ecosystem": "Alpine:v3.8"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-0737.json"
},
"ecosystem_specific": {}
}
],
"modified": "2026-10-23T17:17:55.146601623Z",
"provider": "osv",
"upstream": [
"CVE-2018-0737"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2018-0737"
]
},
"related_cves": [
{
"value": "CVE-2018-0737",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 414931,
"published_at": "2018-04-16T18:29:00.267+00:00"
}