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USN-4600-2 (UBUNTU-CVE-2019-20444)

Vulnerability from osv_ubuntu – Published: 2020-10-27 13:40 – Updated: 2026-04-27 14:11 – Source website
VLAI
Summary
netty vulnerabilities
Details

USN-4600-1 fixed multiple vunerabilities in Netty 3.9. This update provides the corresponding fixes for CVE-2019-20444, CVE-2019-20445 for Netty.

Also it was discovered that Netty allow for unbounded memory allocation. A remote attacker could send a large stream to the Netty server causing it to crash (denial of service). (CVE-2020-11612)

Original advisory details:

It was discovered that Netty had HTTP request smuggling vulnerabilities. A remote attacker could used it to extract sensitive information. (CVE-2019-16869, CVE-2019-20444, CVE-2019-20445, CVE-2020-7238)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2019-20444",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2019-20445",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-11612",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnetty-java",
            "binary_version": "1:4.1.7-4ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "netty",
        "purl": "pkg:deb/ubuntu/netty@1:4.1.7-4ubuntu0.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:4.1.7-4ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:4.1.7-4"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-4600-1 fixed multiple vunerabilities in Netty 3.9. This update provides\nthe corresponding fixes for CVE-2019-20444, CVE-2019-20445 for Netty.\n\nAlso it was discovered that Netty allow for unbounded memory allocation. A\nremote attacker could send a large stream to the Netty server causing it to\ncrash (denial of service). (CVE-2020-11612)\n\nOriginal advisory details:\n\n It was discovered that Netty had HTTP request smuggling vulnerabilities. A\n remote attacker could used it to extract sensitive information. (CVE-2019-16869,\n CVE-2019-20444, CVE-2019-20445, CVE-2020-7238)\n",
  "id": "USN-4600-2",
  "modified": "2026-04-27T14:11:26Z",
  "published": "2020-10-27T13:40:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4600-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-20444"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-20445"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-11612"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "netty vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2019-20444",
    "UBUNTU-CVE-2019-20445",
    "UBUNTU-CVE-2020-11612"
  ]
}



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