usn-3221-2
Vulnerability from osv_ubuntu
Published
2017-03-08 03:31
Modified
2026-02-10 04:41
Summary
linux-hwe vulnerability
Details

USN-3221-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.10. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.10 for Ubuntu 16.04 LTS.

Alexander Popov discovered that the N_HDLC line discipline implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2017-2636)

References
To clipboard 

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                  "type": "CVSS_V3"
                },
                {
                  "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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                {
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                  "type": "Ubuntu"
                }
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      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "linux-hwe",
        "purl": "pkg:deb/ubuntu/linux-hwe@4.8.0-41.44~16.04.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.8.0-41.44~16.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.8.0-36.36~16.04.1",
        "4.8.0-39.42~16.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-3221-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.10.\nThis update provides the corresponding updates for the Linux Hardware\nEnablement (HWE) kernel from Ubuntu 16.10 for Ubuntu 16.04 LTS.\n\nAlexander Popov discovered that the N_HDLC line discipline implementation\nin the Linux kernel contained a double-free vulnerability. A local attacker\ncould use this to cause a denial of service (system crash) or possibly gain\nadministrative privileges. (CVE-2017-2636)\n",
  "id": "USN-3221-2",
  "modified": "2026-02-10T04:41:06Z",
  "published": "2017-03-08T03:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3221-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2017-2636"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-hwe vulnerability",
  "upstream": [
    "UBUNTU-CVE-2017-2636"
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.