ubuntu-cve-2018-14641
Vulnerability from osv_ubuntu
Published
2018-09-18 00:00
Modified
2025-01-13 10:21
Summary
Details

A security flaw was found in the ip_frag_reasm() function in net/ipv4/ip_fragment.c in the Linux kernel from 4.19-rc1 to 4.19-rc3 inclusive, which can cause a later system crash in ip_do_fragment(). With certain non-default, but non-rare, configuration of a victim host, an attacker can trigger this crash remotely, thus leading to a remote denial-of-service.

Severity
5.9 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "ubuntu_priority": "high"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "linux-flo",
        "purl": "pkg:deb/ubuntu/linux-flo@3.4.0-5.23?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.4.0-5.19",
        "3.4.0-5.22",
        "3.4.0-5.23"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "high"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "linux-goldfish",
        "purl": "pkg:deb/ubuntu/linux-goldfish@3.4.0-4.27?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.4.0-4.24",
        "3.4.0-4.26",
        "3.4.0-4.27"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "high"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "linux-mako",
        "purl": "pkg:deb/ubuntu/linux-mako@3.4.0-7.44?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.4.0-7.39",
        "3.4.0-7.40",
        "3.4.0-7.41",
        "3.4.0-7.44"
      ]
    }
  ],
  "aliases": [],
  "details": "A security flaw was found in the ip_frag_reasm() function in net/ipv4/ip_fragment.c in the Linux kernel from 4.19-rc1 to 4.19-rc3 inclusive, which can cause a later system crash in ip_do_fragment(). With certain non-default, but non-rare, configuration of a victim host, an attacker can trigger this crash remotely, thus leading to a remote denial-of-service.",
  "id": "UBUNTU-CVE-2018-14641",
  "modified": "2025-01-13T10:21:39Z",
  "published": "2018-09-18T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-14641"
    },
    {
      "type": "REPORT",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5d407b071dc369c26a38398326ee2be53651cfe4"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2018/09/18/1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-14641"
    }
  ],
  "related": [
    "CVE-2018-14641"
  ],
  "schema_version": "1.6.3",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "withdrawn": "2025-06-23T15:53:14Z"
}



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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.

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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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