GHSA-94WH-PGQJ-7F7R

Vulnerability from github – Published: 2022-05-17 02:48 – Updated: 2022-05-17 02:48
VLAI
Details

The cookie feature in the packet action API implementation in net/sched/act_api.c in the Linux kernel 4.11.x through 4.11-rc7 mishandles the tb nlattr array, which allows local users to cause a denial of service (uninitialized memory access and refcount underflow, and system hang or crash) or possibly have unspecified other impact via "tc filter add" commands in certain contexts. NOTE: this does not affect stable kernels, such as 4.10.x, from kernel.org.

Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2017-7979"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-04-19T23:59:00Z",
    "severity": "HIGH"
  },
  "details": "The cookie feature in the packet action API implementation in net/sched/act_api.c in the Linux kernel 4.11.x through 4.11-rc7 mishandles the tb nlattr array, which allows local users to cause a denial of service (uninitialized memory access and refcount underflow, and system hang or crash) or possibly have unspecified other impact via \"tc filter add\" commands in certain contexts. NOTE: this does not affect stable kernels, such as 4.10.x, from kernel.org.",
  "id": "GHSA-94wh-pgqj-7f7r",
  "modified": "2022-05-17T02:48:18Z",
  "published": "2022-05-17T02:48:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7979"
    },
    {
      "type": "WEB",
      "url": "https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1682368"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.proxmox.com/show_bug.cgi?id=1351"
    },
    {
      "type": "WEB",
      "url": "http://marc.info/?l=linux-netdev\u0026m=149200742616349"
    },
    {
      "type": "WEB",
      "url": "http://marc.info/?l=linux-netdev\u0026m=149200746116365"
    },
    {
      "type": "WEB",
      "url": "http://marc.info/?l=linux-netdev\u0026m=149200746116366"
    },
    {
      "type": "WEB",
      "url": "http://marc.info/?l=linux-netdev\u0026m=149251041420194"
    },
    {
      "type": "WEB",
      "url": "http://marc.info/?l=linux-netdev\u0026m=149251041420195"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/97969"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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