usn-4041-2
Vulnerability from osv_ubuntu
Published
2019-06-29 04:59
Modified
2026-02-10 04:41
Summary
linux-lts-xenial, linux-aws, linux-azure update
Details

USN-4041-1 provided updates for the Linux kernel in Ubuntu. This update provides the corresponding updates for the Linux kernel for Ubuntu 16.04 ESM.

USN-4017-2 fixed vulnerabilities in the Linux kernel. Unfortunately, the update introduced a regression that interfered with networking applications that setup very low SO_SNDBUF values. This update fixes the problem.

We apologize for the inconvenience.

Jonathan Looney discovered that the Linux kernel could be coerced into segmenting responses into multiple TCP segments. A remote attacker could construct an ongoing sequence of requests to cause a denial of service. (CVE-2019-11479)

References
To clipboard 

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        "4.4.0-135.161~14.04.1",
        "4.4.0-137.163~14.04.1",
        "4.4.0-138.164~14.04.1",
        "4.4.0-139.165~14.04.1",
        "4.4.0-140.166~14.04.1",
        "4.4.0-141.167~14.04.1",
        "4.4.0-142.168~14.04.1",
        "4.4.0-143.169~14.04.2",
        "4.4.0-144.170~14.04.1",
        "4.4.0-146.172~14.04.1",
        "4.4.0-148.174~14.04.1",
        "4.4.0-150.176~14.04.1",
        "4.4.0-151.178~14.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-4041-1 provided updates for the Linux kernel in Ubuntu.\nThis update provides the corresponding updates for the Linux kernel\nfor Ubuntu 16.04 ESM.\n\nUSN-4017-2 fixed vulnerabilities in the Linux kernel.  Unfortunately,\nthe update introduced a regression that interfered with networking\napplications that setup very low SO_SNDBUF values. This update fixes\nthe problem.\n\nWe apologize for the inconvenience.\n\nJonathan Looney discovered that the Linux kernel could be coerced into\nsegmenting responses into multiple TCP segments. A remote attacker could\nconstruct an ongoing sequence of requests to cause a denial of service.\n(CVE-2019-11479)\n",
  "id": "USN-4041-2",
  "modified": "2026-02-10T04:41:34Z",
  "published": "2019-06-29T04:59:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4041-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-11479"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-lts-xenial, linux-aws, linux-azure update",
  "upstream": [
    "UBUNTU-CVE-2019-11479"
  ]
}



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Tags
Taxonomy of the tags.





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

Author Source Type Date Other

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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • 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.


Detection rules are retrieved from Rulezet.