ubuntu-cve-2023-49298
Vulnerability from osv_ubuntu
Published
2023-11-24 19:15
Modified
2026-04-22 07:45
Summary
Details
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.
Severity
7.5 (High)
7.5 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libnvpair1linux",
"binary_version": "0.6.5.6-0ubuntu30"
},
{
"binary_name": "libuutil1linux",
"binary_version": "0.6.5.6-0ubuntu30"
},
{
"binary_name": "libzfs2linux",
"binary_version": "0.6.5.6-0ubuntu30"
},
{
"binary_name": "libzpool2linux",
"binary_version": "0.6.5.6-0ubuntu30"
},
{
"binary_name": "zfs-dkms",
"binary_version": "0.6.5.6-0ubuntu30"
},
{
"binary_name": "zfs-initramfs",
"binary_version": "0.6.5.6-0ubuntu30"
},
{
"binary_name": "zfs-zed",
"binary_version": "0.6.5.6-0ubuntu30"
},
{
"binary_name": "zfsutils-linux",
"binary_version": "0.6.5.6-0ubuntu30"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "zfs-linux",
"purl": "pkg:deb/ubuntu/zfs-linux@0.6.5.6-0ubuntu30?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.6.4.2-0ubuntu1",
"0.6.5.3-0ubuntu2",
"0.6.5.3-0ubuntu3",
"0.6.5.3-0ubuntu4",
"0.6.5.3-0ubuntu5",
"0.6.5.3-0ubuntu6",
"0.6.5.4-0ubuntu1",
"0.6.5.4-0ubuntu2",
"0.6.5.4-0ubuntu3",
"0.6.5.4-0ubuntu4",
"0.6.5.4-0ubuntu5",
"0.6.5.4-0ubuntu6",
"0.6.5.6-0ubuntu5",
"0.6.5.6-0ubuntu6",
"0.6.5.6-0ubuntu7",
"0.6.5.6-0ubuntu8",
"0.6.5.6-0ubuntu9",
"0.6.5.6-0ubuntu10",
"0.6.5.6-0ubuntu12",
"0.6.5.6-0ubuntu13",
"0.6.5.6-0ubuntu14",
"0.6.5.6-0ubuntu15",
"0.6.5.6-0ubuntu16",
"0.6.5.6-0ubuntu17",
"0.6.5.6-0ubuntu18",
"0.6.5.6-0ubuntu19",
"0.6.5.6-0ubuntu20",
"0.6.5.6-0ubuntu21",
"0.6.5.6-0ubuntu23",
"0.6.5.6-0ubuntu24",
"0.6.5.6-0ubuntu25",
"0.6.5.6-0ubuntu26",
"0.6.5.6-0ubuntu27",
"0.6.5.6-0ubuntu28",
"0.6.5.6-0ubuntu29",
"0.6.5.6-0ubuntu30"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libnvpair1linux",
"binary_version": "0.7.5-1ubuntu16.12"
},
{
"binary_name": "libuutil1linux",
"binary_version": "0.7.5-1ubuntu16.12"
},
{
"binary_name": "libzfs2linux",
"binary_version": "0.7.5-1ubuntu16.12"
},
{
"binary_name": "libzpool2linux",
"binary_version": "0.7.5-1ubuntu16.12"
},
{
"binary_name": "zfs-dkms",
"binary_version": "0.7.5-1ubuntu16.12"
},
{
"binary_name": "zfs-dracut",
"binary_version": "0.7.5-1ubuntu16.12"
},
{
"binary_name": "zfs-initramfs",
"binary_version": "0.7.5-1ubuntu16.12"
},
{
"binary_name": "zfs-test",
"binary_version": "0.7.5-1ubuntu16.12"
},
{
"binary_name": "zfs-zed",
"binary_version": "0.7.5-1ubuntu16.12"
},
{
"binary_name": "zfsutils-linux",
"binary_version": "0.7.5-1ubuntu16.12"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "zfs-linux",
"purl": "pkg:deb/ubuntu/zfs-linux@0.7.5-1ubuntu16.12?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.6.5.11-1ubuntu3",
"0.6.5.11-1ubuntu4",
"0.6.5.11-1ubuntu5",
"0.6.5.11-1ubuntu6",
"0.7.5-1ubuntu2",
"0.7.5-1ubuntu3",
"0.7.5-1ubuntu4",
"0.7.5-1ubuntu5",
"0.7.5-1ubuntu6",
"0.7.5-1ubuntu7",
"0.7.5-1ubuntu8",
"0.7.5-1ubuntu9",
"0.7.5-1ubuntu10",
"0.7.5-1ubuntu11",
"0.7.5-1ubuntu12",
"0.7.5-1ubuntu13",
"0.7.5-1ubuntu14",
"0.7.5-1ubuntu15",
"0.7.5-1ubuntu16",
"0.7.5-1ubuntu16.2",
"0.7.5-1ubuntu16.3",
"0.7.5-1ubuntu16.4",
"0.7.5-1ubuntu16.6",
"0.7.5-1ubuntu16.7",
"0.7.5-1ubuntu16.8",
"0.7.5-1ubuntu16.9",
"0.7.5-1ubuntu16.10",
"0.7.5-1ubuntu16.11",
"0.7.5-1ubuntu16.12"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libnvpair1linux",
"binary_version": "0.8.3-1ubuntu12.17"
},
{
"binary_name": "libuutil1linux",
"binary_version": "0.8.3-1ubuntu12.17"
},
{
"binary_name": "libzfs2linux",
"binary_version": "0.8.3-1ubuntu12.17"
},
{
"binary_name": "libzpool2linux",
"binary_version": "0.8.3-1ubuntu12.17"
},
{
"binary_name": "python3-pyzfs",
"binary_version": "0.8.3-1ubuntu12.17"
},
{
"binary_name": "spl",
"binary_version": "0.8.3-1ubuntu12.17"
},
{
"binary_name": "spl-dkms",
"binary_version": "0.8.3-1ubuntu12.17"
},
{
"binary_name": "zfs-dkms",
"binary_version": "0.8.3-1ubuntu12.17"
},
{
"binary_name": "zfs-dracut",
"binary_version": "0.8.3-1ubuntu12.17"
},
{
"binary_name": "zfs-initramfs",
"binary_version": "0.8.3-1ubuntu12.17"
},
{
"binary_name": "zfs-test",
"binary_version": "0.8.3-1ubuntu12.17"
},
{
"binary_name": "zfs-zed",
"binary_version": "0.8.3-1ubuntu12.17"
},
{
"binary_name": "zfsutils-linux",
"binary_version": "0.8.3-1ubuntu12.17"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "zfs-linux",
"purl": "pkg:deb/ubuntu/zfs-linux@0.8.3-1ubuntu12.17?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.8.3-1ubuntu12.17"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.8.1-1ubuntu14",
"0.8.1-1ubuntu15",
"0.8.1-1ubuntu16",
"0.8.1-1ubuntu17",
"0.8.2-3ubuntu1",
"0.8.2-3ubuntu2",
"0.8.2-3ubuntu3",
"0.8.2-3ubuntu4",
"0.8.2-3ubuntu5",
"0.8.3-1ubuntu2",
"0.8.3-1ubuntu3",
"0.8.3-1ubuntu4",
"0.8.3-1ubuntu5",
"0.8.3-1ubuntu6",
"0.8.3-1ubuntu7",
"0.8.3-1ubuntu8",
"0.8.3-1ubuntu9",
"0.8.3-1ubuntu10",
"0.8.3-1ubuntu11",
"0.8.3-1ubuntu12",
"0.8.3-1ubuntu12.1",
"0.8.3-1ubuntu12.2",
"0.8.3-1ubuntu12.3",
"0.8.3-1ubuntu12.4",
"0.8.3-1ubuntu12.5",
"0.8.3-1ubuntu12.6",
"0.8.3-1ubuntu12.7",
"0.8.3-1ubuntu12.8",
"0.8.3-1ubuntu12.9",
"0.8.3-1ubuntu12.10",
"0.8.3-1ubuntu12.11",
"0.8.3-1ubuntu12.12",
"0.8.3-1ubuntu12.13",
"0.8.3-1ubuntu12.14",
"0.8.3-1ubuntu12.15",
"0.8.3-1ubuntu12.16"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libnvpair3linux",
"binary_version": "2.1.5-1ubuntu6~22.04.4"
},
{
"binary_name": "libpam-zfs",
"binary_version": "2.1.5-1ubuntu6~22.04.4"
},
{
"binary_name": "libuutil3linux",
"binary_version": "2.1.5-1ubuntu6~22.04.4"
},
{
"binary_name": "libzfs4linux",
"binary_version": "2.1.5-1ubuntu6~22.04.4"
},
{
"binary_name": "libzfsbootenv1linux",
"binary_version": "2.1.5-1ubuntu6~22.04.4"
},
{
"binary_name": "libzpool5linux",
"binary_version": "2.1.5-1ubuntu6~22.04.4"
},
{
"binary_name": "python3-pyzfs",
"binary_version": "2.1.5-1ubuntu6~22.04.4"
},
{
"binary_name": "zfs-dkms",
"binary_version": "2.1.5-1ubuntu6~22.04.4"
},
{
"binary_name": "zfs-dracut",
"binary_version": "2.1.5-1ubuntu6~22.04.4"
},
{
"binary_name": "zfs-initramfs",
"binary_version": "2.1.5-1ubuntu6~22.04.4"
},
{
"binary_name": "zfs-test",
"binary_version": "2.1.5-1ubuntu6~22.04.4"
},
{
"binary_name": "zfs-zed",
"binary_version": "2.1.5-1ubuntu6~22.04.4"
},
{
"binary_name": "zfsutils-linux",
"binary_version": "2.1.5-1ubuntu6~22.04.4"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "zfs-linux",
"purl": "pkg:deb/ubuntu/zfs-linux@2.1.5-1ubuntu6~22.04.4?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.5-1ubuntu6~22.04.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.0.6-1ubuntu2",
"2.0.6-1ubuntu3",
"2.1.2-1ubuntu1",
"2.1.2-1ubuntu2",
"2.1.2-1ubuntu3",
"2.1.4-0ubuntu0.1",
"2.1.5-1ubuntu6~22.04.1",
"2.1.5-1ubuntu6~22.04.2",
"2.1.5-1ubuntu6~22.04.3"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libnvpair3linux",
"binary_version": "2.2.2-0ubuntu2"
},
{
"binary_name": "libpam-zfs",
"binary_version": "2.2.2-0ubuntu2"
},
{
"binary_name": "libuutil3linux",
"binary_version": "2.2.2-0ubuntu2"
},
{
"binary_name": "libzfs4linux",
"binary_version": "2.2.2-0ubuntu2"
},
{
"binary_name": "libzfsbootenv1linux",
"binary_version": "2.2.2-0ubuntu2"
},
{
"binary_name": "libzpool5linux",
"binary_version": "2.2.2-0ubuntu2"
},
{
"binary_name": "python3-pyzfs",
"binary_version": "2.2.2-0ubuntu2"
},
{
"binary_name": "zfs-dkms",
"binary_version": "2.2.2-0ubuntu2"
},
{
"binary_name": "zfs-dracut",
"binary_version": "2.2.2-0ubuntu2"
},
{
"binary_name": "zfs-initramfs",
"binary_version": "2.2.2-0ubuntu2"
},
{
"binary_name": "zfs-test",
"binary_version": "2.2.2-0ubuntu2"
},
{
"binary_name": "zfs-zed",
"binary_version": "2.2.2-0ubuntu2"
},
{
"binary_name": "zfsutils-linux",
"binary_version": "2.2.2-0ubuntu2"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "zfs-linux",
"purl": "pkg:deb/ubuntu/zfs-linux@2.2.2-0ubuntu2?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.2-0ubuntu2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.2.0~rc3-0ubuntu4",
"2.2.0-0ubuntu1",
"2.2.0-0ubuntu3",
"2.2.1-0ubuntu1",
"2.2.2-0ubuntu1"
]
}
],
"aliases": [],
"details": "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.",
"id": "UBUNTU-CVE-2023-49298",
"modified": "2026-04-22T07:45:29Z",
"published": "2023-11-24T19:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-49298"
},
{
"type": "REPORT",
"url": "https://news.ycombinator.com/item?id=38405731"
},
{
"type": "REPORT",
"url": "https://web.archive.org/web/20231124172959/https://www.ibm.com/support/pages/how-remove-missing%C2%A0newline%C2%A0or%C2%A0line%C2%A0too%C2%A0long-error-etchostsallow%C2%A0and%C2%A0etchostsdeny-files"
},
{
"type": "REPORT",
"url": "https://github.com/openzfs/zfs/releases/tag/zfs-2.2.2"
},
{
"type": "REPORT",
"url": "https://gist.github.com/rincebrain/e23b4a39aba3fadc04db18574d30dc73"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-49298"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2023-49298"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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