HighFix available
zfs, zfs-lts and 1 more products — security advisory
OpenZFS through 2.1.13 and 2.2.x through 2.2.1, in certain scenarios involving applications that try to rely on efficient copying of file data, can replace file contents with zero-valued bytes and thus potentially disable security mechanisms. NOTE: this issue is not always security related, but can be security related in realistic situations. A possible example is cp, from a recent GNU Core Utilities (coreutils) version, when attempting to preserve a rule set for denying unauthorized access. (One might use cp when configuring access control, such as with the /etc/hosts.deny file specified in the IBM Support reference.) NOTE: this issue occurs less often in version 2.2.1, and in versions before 2.1.4, because of the default configuration in those versions.
- Products
- zfs, zfs-lts, zfs-rpi
- Affected versions
- Not specified
- Fixed versions
- 2.2.1-r1
- CVEs
- CVE-2023-49298
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 15:02 UTC · Revision 1
Source evidence
OpenZFS through 2.1.13 and 2.2.x through 2.2.1, in certain scenarios involving applications that try to rely on efficient copying of file data, can replace file contents with zero-valued bytes and thus potentially disable security mechanisms. NOTE: this issue is not always security related, but can be security related in realistic situations. A possible example is cp, from a recent GNU Core Utilities (coreutils) version, when attempting to preserve a rule set for denying unauthorized access. (One might use cp when configuring access control, such as with the /etc/hosts.deny file specified in the IBM Support reference.) NOTE: this issue occurs less often in version 2.2.1, and in versions before 2.1.4, because of the default configuration in those versions.
osv:ALPINE-CVE-2023-49298
zfs
Fixed versions: 2.2.1-r1
zfs
Fixed versions: 2.2.1-r1
zfs
Fixed versions: 2.2.1-r1
zfs
Fixed versions: 2.2.1-r1
zfs
Fixed versions: 2.2.1-r1
zfs
Fixed versions: 2.2.1-r1
zfs-lts
Fixed versions: 2.2.1-r1
zfs-lts
Fixed versions: 2.2.1-r1
zfs-lts
Fixed versions: 2.2.1-r1
zfs-lts
Fixed versions: 2.2.1-r1
zfs-lts
Fixed versions: 2.2.1-r1
zfs-lts
Fixed versions: 2.2.1-r1
zfs-rpi
Fixed versions: 2.2.1-r1
zfs-rpi
Fixed versions: 2.2.1-r1
zfs-rpi
Fixed versions: 2.2.1-r1
zfs-rpi
Fixed versions: 2.2.1-r1
zfs-rpi
Fixed versions: 2.2.1-r1
zfs-rpi
Fixed versions: 2.2.1-r1
Complete source record
{
"id": "b8d180eb1330ae23344f688451d18ca037a6ad97db7676a95d92ca7afd4dc366",
"url": "https://osv.dev/vulnerability/ALPINE-CVE-2023-49298",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ALPINE-CVE-2023-49298",
"summary": "OpenZFS through 2.1.13 and 2.2.x through 2.2.1, in certain scenarios involving applications that try to rely on efficient copying of file data, can replace file contents with zero-valued bytes and thus potentially disable security mechanisms. NOTE: this issue is not always security related, but can be security related in realistic situations. A possible example is cp, from a recent GNU Core Utilities (coreutils) version, when attempting to preserve a rule set for denying unauthorized access. (One might use cp when configuring access control, such as with the /etc/hosts.deny file specified in the IBM Support reference.) NOTE: this issue occurs less often in version 2.2.1, and in versions before 2.1.4, because of the default configuration in those versions.",
"evidence": "osv:ALPINE-CVE-2023-49298",
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"aliases": [
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],
"metrics": [
{
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"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
}
],
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"ecosystem": "Alpine:v3.24"
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],
"modified": "2026-10-26T17:17:58.656316562Z",
"provider": "osv",
"upstream": [
"CVE-2023-49298"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2023-49298"
]
},
"related_cves": [
{
"value": "CVE-2023-49298",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 454556,
"published_at": "2023-11-24T19:15:07.587+00:00"
}