ubuntu-cve-2015-5739
Vulnerability from osv_ubuntu
Published
2017-10-18 20:29
Modified
2025-10-24 04:45
Summary
Details

The net/http library in net/textproto/reader.go in Go before 1.4.3 does not properly parse HTTP header keys, which allows remote attackers to conduct HTTP request smuggling attacks via a space instead of a hyphen, as demonstrated by "Content Length" instead of "Content-Length."

Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gcc-4.9-base",
            "binary_version": "4.9.3-0ubuntu4"
          },
          {
            "binary_name": "gccgo-4.9",
            "binary_version": "4.9.3-0ubuntu4"
          },
          {
            "binary_name": "gccgo-4.9-multilib",
            "binary_version": "4.9.3-0ubuntu4"
          },
          {
            "binary_name": "lib32gcc1",
            "binary_version": "1:4.9.3-0ubuntu4"
          },
          {
            "binary_name": "lib32go5",
            "binary_version": "4.9.3-0ubuntu4"
          },
          {
            "binary_name": "lib64gcc1",
            "binary_version": "1:4.9.3-0ubuntu4"
          },
          {
            "binary_name": "lib64go5",
            "binary_version": "4.9.3-0ubuntu4"
          },
          {
            "binary_name": "libgcc1",
            "binary_version": "1:4.9.3-0ubuntu4"
          },
          {
            "binary_name": "libgo5",
            "binary_version": "4.9.3-0ubuntu4"
          },
          {
            "binary_name": "libsfgcc1",
            "binary_version": "1:4.9.3-0ubuntu4"
          },
          {
            "binary_name": "libx32gcc1",
            "binary_version": "1:4.9.3-0ubuntu4"
          },
          {
            "binary_name": "libx32go5",
            "binary_version": "4.9.3-0ubuntu4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "gccgo-4.9",
        "purl": "pkg:deb/ubuntu/gccgo-4.9@4.9.3-0ubuntu4?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.9-20140213-0ubuntu1",
        "4.9-20140213-0ubuntu2",
        "4.9-20140217-0ubuntu1",
        "4.9-20140222-0ubuntu1",
        "4.9-20140303-0ubuntu2",
        "4.9-20140303-0ubuntu3",
        "4.9-20140321-0ubuntu1",
        "4.9-20140330-0ubuntu1",
        "4.9-20140406-0ubuntu1",
        "4.9.1-0ubuntu1",
        "4.9.3-0ubuntu4"
      ]
    }
  ],
  "aliases": [],
  "details": "The net/http library in net/textproto/reader.go in Go before 1.4.3 does not properly parse HTTP header keys, which allows remote attackers to conduct HTTP request smuggling attacks via a space instead of a hyphen, as demonstrated by \"Content Length\" instead of \"Content-Length.\"",
  "id": "UBUNTU-CVE-2015-5739",
  "modified": "2025-10-24T04:45:26Z",
  "published": "2017-10-18T20:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-5739"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/golang/go/commit/117ddcb83d7f42d6aa72241240af99ded81118e9"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2015-5739"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2015-5739"
  ]
}



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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.


Detection rules are retrieved from Rulezet.