ghsa-vvvp-c6hw-m8pj
Vulnerability from github
Published
2024-06-20 12:31
Modified
2024-06-20 12:31
Details

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

net: fix information leakage in /proc/net/ptype

In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new packet_type added by this packet socket by reading /proc/net/ptype file. This is minor information leakage as packet socket is namespace aware.

Add a net pointer in packet_type to keep the net namespace of of corresponding packet socket. In ptype_seq_show, this net pointer must be checked when it is not NULL.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48757"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-20T12:15:13Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix information leakage in /proc/net/ptype\n\nIn one net namespace, after creating a packet socket without binding\nit to a device, users in other net namespaces can observe the new\n`packet_type` added by this packet socket by reading `/proc/net/ptype`\nfile. This is minor information leakage as packet socket is\nnamespace aware.\n\nAdd a net pointer in `packet_type` to keep the net namespace of\nof corresponding packet socket. In `ptype_seq_show`, this net pointer\nmust be checked when it is not NULL.",
  "id": "GHSA-vvvp-c6hw-m8pj",
  "modified": "2024-06-20T12:31:22Z",
  "published": "2024-06-20T12:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48757"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/47934e06b65637c88a762d9c98329ae6e3238888"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/839ec7039513a4f84bfbaff953a9393471176bee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8f88c78d24f6f346919007cd459fd7e51a8c7779"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b67ad6170c0ea87391bb253f35d1f78857736e54"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/be1ca30331c7923c6f376610c1bd6059be9b1908"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c38023032a598ec6263e008d62c7f02def72d5c7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db044d97460ea792110eb8b971e82569ded536c6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e372ecd455b6ebc7720f52bf4b5f5d44d02f2092"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e43669c77cb3a742b7d84ecdc7c68c4167a7709b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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