usn-4532-1
Vulnerability from osv_ubuntu
Published
2020-09-22 16:15
Modified
2026-04-27 14:11
Summary
netty-3.9 vulnerabilities
Details

It was discovered that Netty incorrectly handled certain HTTP headers. By sending an HTTP header with whitespace before the colon, a remote attacker could possibly use this issue to perform an HTTP request smuggling attack. (CVE-2019-16869)

It was discovered that Netty incorrectly handled certain HTTP headers. By sending an HTTP header that lacks a colon, a remote attacker could possibly use this issue to perform an HTTP request smuggling attack. (CVE-2019-20444)

It was discovered that Netty incorrectly handled certain HTTP headers. By sending a Content-Length header accompanied by a second Content-Length header, or by a Transfer-Encoding header, a remote attacker could possibly use this issue to perform an HTTP request smuggling attack. (CVE-2019-20445)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2019-16869",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "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"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnetty-3.9-java",
            "binary_version": "3.9.9.Final-1+deb9u1build0.18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "netty-3.9",
        "purl": "pkg:deb/ubuntu/netty-3.9@3.9.9.Final-1+deb9u1build0.18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.9.9.Final-1+deb9u1build0.18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.9.9.Final-1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that Netty incorrectly handled certain HTTP headers. \nBy sending an HTTP header with whitespace before the colon, a remote \nattacker could possibly use this issue to perform an HTTP request \nsmuggling attack. (CVE-2019-16869)\n\nIt was discovered that Netty incorrectly handled certain HTTP headers. \nBy sending an HTTP header that lacks a colon, a remote attacker could \npossibly use this issue to perform an HTTP request smuggling attack.\n(CVE-2019-20444)\n\nIt was discovered that Netty incorrectly handled certain HTTP headers. \nBy sending a Content-Length header accompanied by a second Content-Length \nheader, or by a Transfer-Encoding header, a remote attacker could possibly\nuse this issue to perform an HTTP request smuggling attack. \n(CVE-2019-20445)\n",
  "id": "USN-4532-1",
  "modified": "2026-04-27T14:11:25Z",
  "published": "2020-09-22T16:15:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4532-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-16869"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-20444"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-20445"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "netty-3.9 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2019-16869",
    "UBUNTU-CVE-2019-20444",
    "UBUNTU-CVE-2019-20445"
  ]
}



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  • 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.


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