MediumFix available
xen — security advisory
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.
- Products
- xen
- Affected versions
- Not specified
- Fixed versions
- 4.15.5-r0, 4.16.4-r0, 4.17.0-r5
- CVEs
- CVE-2022-42331
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 14:18 UTC · Revision 1
Source evidence
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.
osv:ALPINE-CVE-2022-42331
xen
Fixed versions: 4.15.5-r0
xen
Fixed versions: 4.16.4-r0
xen
Fixed versions: 4.16.4-r0
xen
Fixed versions: 4.17.0-r5
xen
Fixed versions: 4.17.0-r5
xen
Fixed versions: 4.17.0-r5
xen
Fixed versions: 4.17.0-r5
xen
Fixed versions: 4.17.0-r5
xen
Fixed versions: 4.17.0-r5
xen
Fixed versions: 4.17.0-r5
Complete source record
{
"id": "e1021201b0087bac1d584b0f7aa533e61d4e5cfd52ec4372378921db98ceb71d",
"url": "https://osv.dev/vulnerability/ALPINE-CVE-2022-42331",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ALPINE-CVE-2022-42331",
"summary": "x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.",
"evidence": "osv:ALPINE-CVE-2022-42331",
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{
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],
"affected_versions": []
},
{
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{
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},
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"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "ALPINE-CVE-2022-42331",
"aliases": [
"ALPINE-CVE-2022-42331"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "4.15.5-r0"
}
]
}
],
"package": {
"name": "xen",
"purl": "pkg:apk/alpine/xen?arch=source",
"ecosystem": "Alpine:v3.15"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-42331.json"
},
"ecosystem_specific": {}
},
{
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"events": [
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],
"package": {
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"purl": "pkg:apk/alpine/xen?arch=source",
"ecosystem": "Alpine:v3.16"
},
"database_specific": {
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},
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{
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],
"package": {
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"purl": "pkg:apk/alpine/xen?arch=source",
"ecosystem": "Alpine:v3.17"
},
"database_specific": {
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},
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{
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],
"package": {
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"purl": "pkg:apk/alpine/xen?arch=source",
"ecosystem": "Alpine:v3.18"
},
"database_specific": {
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],
"package": {
"name": "xen",
"purl": "pkg:apk/alpine/xen?arch=source",
"ecosystem": "Alpine:v3.19"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-42331.json"
},
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],
"package": {
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"purl": "pkg:apk/alpine/xen?arch=source",
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},
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],
"package": {
"name": "xen",
"purl": "pkg:apk/alpine/xen?arch=source",
"ecosystem": "Alpine:v3.21"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-42331.json"
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"package": {
"name": "xen",
"purl": "pkg:apk/alpine/xen?arch=source",
"ecosystem": "Alpine:v3.22"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-42331.json"
},
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}
],
"package": {
"name": "xen",
"purl": "pkg:apk/alpine/xen?arch=source",
"ecosystem": "Alpine:v3.23"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-42331.json"
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{
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],
"package": {
"name": "xen",
"purl": "pkg:apk/alpine/xen?arch=source",
"ecosystem": "Alpine:v3.24"
},
"database_specific": {
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}
],
"modified": "2026-10-15T07:17:54.263585330Z",
"provider": "osv",
"upstream": [
"CVE-2022-42331"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2022-42331"
]
},
"related_cves": [
{
"value": "CVE-2022-42331",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 322000,
"published_at": "2023-03-21T13:15:11.833+00:00"
}