GHSA-RJP6-GJQ7-25V6

Vulnerability from github – Published: 2024-08-21 03:31 – Updated: 2025-11-04 00:31
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

vhost/vsock: always initialize seqpacket_allow

There are two issues around seqpacket_allow: 1. seqpacket_allow is not initialized when socket is created. Thus if features are never set, it will be read uninitialized. 2. if VIRTIO_VSOCK_F_SEQPACKET is set and then cleared, then seqpacket_allow will not be cleared appropriately (existing apps I know about don't usually do this but it's legal and there's no way to be sure no one relies on this).

To fix: - initialize seqpacket_allow after allocation - set it unconditionally in set_features

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2024-43873"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-909"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-21T01:15:11Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvhost/vsock: always initialize seqpacket_allow\n\nThere are two issues around seqpacket_allow:\n1. seqpacket_allow is not initialized when socket is\n   created. Thus if features are never set, it will be\n   read uninitialized.\n2. if VIRTIO_VSOCK_F_SEQPACKET is set and then cleared,\n   then seqpacket_allow will not be cleared appropriately\n   (existing apps I know about don\u0027t usually do this but\n    it\u0027s legal and there\u0027s no way to be sure no one relies\n    on this).\n\nTo fix:\n\t- initialize seqpacket_allow after allocation\n\t- set it unconditionally in set_features",
  "id": "GHSA-rjp6-gjq7-25v6",
  "modified": "2025-11-04T00:31:17Z",
  "published": "2024-08-21T03:31:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43873"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1e1fdcbdde3b7663e5d8faeb2245b9b151417d22"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3062cb100787a9ddf45de30004b962035cd497fb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/30bd4593669443ac58515e23557dc8cef70d8582"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ea558f10fb05a6503c6e655a1b7d81fdf8e5924c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eab96e8716cbfc2834b54f71cc9501ad4eec963b"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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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.

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