HighFix available
linux — security advisory
The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.
- Products
- linux
- Affected versions
- Not specified
- Fixed versions
- 5.14.6-1
- CVEs
- CVE-2021-42008
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 01:05 UTC · Revision 1
Source evidence
The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.
osv:DEBIAN-CVE-2021-42008
linux
Fixed versions: 5.14.6-1
linux
Fixed versions: 5.14.6-1
linux
Fixed versions: 5.14.6-1
Complete source record
{
"id": "aadc23fc00e35a578a5f8e66be3bee8adc757e52a89dfc7d69477b1847f87281",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-42008",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2021-42008",
"summary": "The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.",
"evidence": "osv:DEBIAN-CVE-2021-42008",
"products": [
{
"name": {
"value": "linux",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.14.6-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "linux",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.14.6-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
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"fixed_versions": [
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],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2021-42008",
"aliases": [
"DEBIAN-CVE-2021-42008"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
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}
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}
],
"package": {
"name": "linux",
"purl": "pkg:deb/debian/linux?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-42008.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
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],
"package": {
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"purl": "pkg:deb/debian/linux?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-42008.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
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{
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{
"fixed": "5.14.6-1"
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],
"package": {
"name": "linux",
"purl": "pkg:deb/debian/linux?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-42008.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:04:15.825397312Z",
"provider": "osv",
"upstream": [
"CVE-2021-42008"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2021-42008"
]
},
"related_cves": [
{
"value": "CVE-2021-42008",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 423051,
"published_at": "2021-10-05T00:15:07.413+00:00"
}