GHSA-MVG7-8XH2-47RF

Vulnerability from github – Published: 2023-11-24 21:30 – Updated: 2025-11-03 21:30
VLAI?
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)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2023-49298"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-11-24T19:15:07Z",
    "severity": "HIGH"
  },
  "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": "GHSA-mvg7-8xh2-47rf",
  "modified": "2025-11-03T21:30:56Z",
  "published": "2023-11-24T21:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-49298"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openzfs/zfs/issues/15526"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openzfs/zfs/pull/15571"
    },
    {
      "type": "WEB",
      "url": "https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275308"
    },
    {
      "type": "WEB",
      "url": "https://bugs.gentoo.org/917224"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openzfs/zfs/releases/tag/zfs-2.1.14"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openzfs/zfs/releases/tag/zfs-2.2.2"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/03/msg00019.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/04/msg00009.html"
    },
    {
      "type": "WEB",
      "url": "https://news.ycombinator.com/item?id=38405731"
    },
    {
      "type": "WEB",
      "url": "https://news.ycombinator.com/item?id=38770168"
    },
    {
      "type": "WEB",
      "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": "WEB",
      "url": "https://www.theregister.com/2023/12/04/two_new_versions_of_openzfs"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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