{
  "cveId": "CVE-2023-49298",
  "url": "https://patchblox.com/security/cve/CVE-2023-49298",
  "summary": "CVE-2023-49298 is fixed in 20 products on 1 platform, first by libnvpair1linux 0.8.3-1ubuntu12.17, released November 24, 2023. It is not reported as exploited. Patch Radar priority: High.",
  "title": "libnvpair3linux: OpenZFS through 2.1.13 and 2.2.x through 2.2.1, in certain scenariosinvolving applications that try to rely on effici...",
  "description": "OpenZFS through 2.1.13 and 2.2.x through 2.2.1, in certain scenariosinvolving applications that try to rely on efficient copying of file data,can replace file contents with zero-valued bytes and thus potentiallydisable security mechanisms. NOTE: this issue is not always securityrelated, but can be security related in realistic situations. A possibleexample is cp, from a recent GNU Core Utilities (coreutils) version, whenattempting to preserve a rule set for denying unauthorized access. (Onemight use cp when configuring access control, such as with the/etc/hosts.deny file specified in the IBM Support reference.) NOTE: thisissue occurs less often in version 2.2.1, and in versions before 2.1.4,because of the default configuration in those versions.",
  "published": "2023-11-24T11:15:00Z",
  "severity": "Medium",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
  "epss": 0.01158,
  "epssPercentile": 0.67286,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libnvpair1linux",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.8.3-1ubuntu12.17",
      "fix": "libnvpair1linux 0.8.3-1ubuntu12.17",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libnvpair1linux-0.8.3-1ubuntu12.17",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libnvpair3linux",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.1.5-1ubuntu6~22.04.4",
      "fix": "libnvpair3linux 2.1.5-1ubuntu6~22.04.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libnvpair3linux-2.1.5-1ubuntu6-22.04.4",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libnvpair3linux",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libnvpair3linux 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libnvpair3linux-2.2.2-0ubuntu2",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libnvpair3linux",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libnvpair3linux 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-libnvpair3linux-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:23Z"
    },
    {
      "platform": "linux",
      "product": "libnvpair3linux",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libnvpair3linux 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-libnvpair3linux-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:24Z"
    },
    {
      "platform": "linux",
      "product": "libpam-zfs",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.1.5-1ubuntu6~22.04.4",
      "fix": "libpam-zfs 2.1.5-1ubuntu6~22.04.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libpam-zfs-2.1.5-1ubuntu6-22.04.4",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libpam-zfs",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libpam-zfs 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libpam-zfs-2.2.2-0ubuntu2",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libpam-zfs",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libpam-zfs 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-libpam-zfs-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:23Z"
    },
    {
      "platform": "linux",
      "product": "libpam-zfs",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libpam-zfs 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-libpam-zfs-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:24Z"
    },
    {
      "platform": "linux",
      "product": "libuutil1linux",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.8.3-1ubuntu12.17",
      "fix": "libuutil1linux 0.8.3-1ubuntu12.17",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libuutil1linux-0.8.3-1ubuntu12.17",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libuutil3linux",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.1.5-1ubuntu6~22.04.4",
      "fix": "libuutil3linux 2.1.5-1ubuntu6~22.04.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libuutil3linux-2.1.5-1ubuntu6-22.04.4",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libuutil3linux",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libuutil3linux 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libuutil3linux-2.2.2-0ubuntu2",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libuutil3linux",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libuutil3linux 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-libuutil3linux-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:23Z"
    },
    {
      "platform": "linux",
      "product": "libuutil3linux",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libuutil3linux 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-libuutil3linux-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:24Z"
    },
    {
      "platform": "linux",
      "product": "libzfs2linux",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.8.3-1ubuntu12.17",
      "fix": "libzfs2linux 0.8.3-1ubuntu12.17",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libzfs2linux-0.8.3-1ubuntu12.17",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libzfs4linux",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.1.5-1ubuntu6~22.04.4",
      "fix": "libzfs4linux 2.1.5-1ubuntu6~22.04.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libzfs4linux-2.1.5-1ubuntu6-22.04.4",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libzfs4linux",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libzfs4linux 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libzfs4linux-2.2.2-0ubuntu2",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libzfs4linux",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libzfs4linux 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-libzfs4linux-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:23Z"
    },
    {
      "platform": "linux",
      "product": "libzfs4linux",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libzfs4linux 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-libzfs4linux-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:24Z"
    },
    {
      "platform": "linux",
      "product": "libzfsbootenv1linux",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.1.5-1ubuntu6~22.04.4",
      "fix": "libzfsbootenv1linux 2.1.5-1ubuntu6~22.04.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libzfsbootenv1linux-2.1.5-1ubuntu6-22.04.4",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libzfsbootenv1linux",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libzfsbootenv1linux 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libzfsbootenv1linux-2.2.2-0ubuntu2",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libzfsbootenv1linux",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libzfsbootenv1linux 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-libzfsbootenv1linux-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:23Z"
    },
    {
      "platform": "linux",
      "product": "libzfsbootenv1linux",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libzfsbootenv1linux 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-libzfsbootenv1linux-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:24Z"
    },
    {
      "platform": "linux",
      "product": "libzpool2linux",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.8.3-1ubuntu12.17",
      "fix": "libzpool2linux 0.8.3-1ubuntu12.17",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libzpool2linux-0.8.3-1ubuntu12.17",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libzpool5linux",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.1.5-1ubuntu6~22.04.4",
      "fix": "libzpool5linux 2.1.5-1ubuntu6~22.04.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libzpool5linux-2.1.5-1ubuntu6-22.04.4",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libzpool5linux",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libzpool5linux 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libzpool5linux-2.2.2-0ubuntu2",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libzpool5linux",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "libzpool5linux 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-libzpool5linux-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:23Z"
    },
    {
      "platform": "linux",
      "product": "libzpool5linux",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2.2.2-0ubuntu2",
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      "released": "2026-01-16T01:42:24Z"
    },
    {
      "platform": "linux",
      "product": "python3-pyzfs",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.8.3-1ubuntu12.17",
      "fix": "python3-pyzfs 0.8.3-1ubuntu12.17",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python3-pyzfs-0.8.3-1ubuntu12.17",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-pyzfs",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.1.5-1ubuntu6~22.04.4",
      "fix": "python3-pyzfs 2.1.5-1ubuntu6~22.04.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-python3-pyzfs-2.1.5-1ubuntu6-22.04.4",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-pyzfs",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "python3-pyzfs 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-python3-pyzfs-2.2.2-0ubuntu2",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-pyzfs",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "python3-pyzfs 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-python3-pyzfs-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:23Z"
    },
    {
      "platform": "linux",
      "product": "python3-pyzfs",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "python3-pyzfs 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-python3-pyzfs-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:24Z"
    },
    {
      "platform": "linux",
      "product": "spl",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.8.3-1ubuntu12.17",
      "fix": "spl 0.8.3-1ubuntu12.17",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-spl-0.8.3-1ubuntu12.17",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "spl-dkms",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.8.3-1ubuntu12.17",
      "fix": "spl-dkms 0.8.3-1ubuntu12.17",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-spl-dkms-0.8.3-1ubuntu12.17",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zfs-dkms",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.8.3-1ubuntu12.17",
      "fix": "zfs-dkms 0.8.3-1ubuntu12.17",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-zfs-dkms-0.8.3-1ubuntu12.17",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zfs-dkms",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
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      "fix": "zfs-dkms 2.1.5-1ubuntu6~22.04.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-zfs-dkms-2.1.5-1ubuntu6-22.04.4",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zfs-dkms",
      "release": "Ubuntu 24.04.5 LTS (noble)",
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      "fix": "zfs-dkms 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-zfs-dkms-2.2.2-0ubuntu2",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zfs-dkms",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "zfs-dkms 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-zfs-dkms-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:23Z"
    },
    {
      "platform": "linux",
      "product": "zfs-dkms",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "zfs-dkms 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-zfs-dkms-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:24Z"
    },
    {
      "platform": "linux",
      "product": "zfs-dracut",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.8.3-1ubuntu12.17",
      "fix": "zfs-dracut 0.8.3-1ubuntu12.17",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-zfs-dracut-0.8.3-1ubuntu12.17",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zfs-dracut",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.1.5-1ubuntu6~22.04.4",
      "fix": "zfs-dracut 2.1.5-1ubuntu6~22.04.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-zfs-dracut-2.1.5-1ubuntu6-22.04.4",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zfs-dracut",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "zfs-dracut 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-zfs-dracut-2.2.2-0ubuntu2",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zfs-dracut",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "zfs-dracut 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-zfs-dracut-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:23Z"
    },
    {
      "platform": "linux",
      "product": "zfs-dracut",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "zfs-dracut 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-zfs-dracut-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:24Z"
    },
    {
      "platform": "linux",
      "product": "zfs-initramfs",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.8.3-1ubuntu12.17",
      "fix": "zfs-initramfs 0.8.3-1ubuntu12.17",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-zfs-initramfs-0.8.3-1ubuntu12.17",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zfs-initramfs",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.1.5-1ubuntu6~22.04.4",
      "fix": "zfs-initramfs 2.1.5-1ubuntu6~22.04.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-zfs-initramfs-2.1.5-1ubuntu6-22.04.4",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zfs-initramfs",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "zfs-initramfs 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-zfs-initramfs-2.2.2-0ubuntu2",
      "released": "2023-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zfs-initramfs",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2.2.2-0ubuntu2",
      "fix": "zfs-initramfs 2.2.2-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-zfs-initramfs-2.2.2-0ubuntu2",
      "released": "2026-01-16T01:42:23Z"
    },
    {
      "platform": "linux",
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  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}