ubuntu-cve-2019-5010
Vulnerability from osv_ubuntu
Published
2019-01-18 00:00
Modified
2026-04-22 07:38
Summary
Details

An exploitable denial-of-service vulnerability exists in the X509 certificate parser of Python.org Python 2.7.11 / 3.6.6. A specially crafted X509 certificate can cause a NULL pointer dereference, resulting in a denial of service. An attacker can initiate or accept TLS connections using crafted certificates to trigger this vulnerability.


{
  "affected": [
    {
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        "binaries": [
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          {
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            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm2"
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          },
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      },
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        "name": "python3.4",
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      },
      "ranges": [
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            },
            {
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            }
          ],
          "type": "ECOSYSTEM"
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      ],
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        "3.4~b1-4ubuntu4",
        "3.4~b1-4ubuntu6",
        "3.4~b1-5ubuntu2",
        "3.4~b2-1",
        "3.4~b3-1ubuntu1",
        "3.4~rc1-1build1",
        "3.4~rc2-1",
        "3.4~rc3-0ubuntu1",
        "3.4.0-1",
        "3.4.0-2ubuntu1",
        "3.4.0-2ubuntu1.1",
        "3.4.3-1ubuntu1~14.04.1",
        "3.4.3-1ubuntu1~14.04.3",
        "3.4.3-1ubuntu1~14.04.4",
        "3.4.3-1ubuntu1~14.04.5",
        "3.4.3-1ubuntu1~14.04.6",
        "3.4.3-1ubuntu1~14.04.7"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
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        ]
      },
      "package": {
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        "name": "python3.5",
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      },
      "ranges": [
        {
          "events": [
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            },
            {
              "fixed": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.5.2-2ubuntu0~16.04.4~14.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "idle-python2.7",
            "binary_version": "2.7.12-1ubuntu0~16.04.8"
          },
          {
            "binary_name": "libpython2.7",
            "binary_version": "2.7.12-1ubuntu0~16.04.8"
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      },
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        "ecosystem": "Ubuntu:16.04:LTS",
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        "2.7.10-4ubuntu2",
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        "2.7.11-4",
        "2.7.11-6",
        "2.7.11-7",
        "2.7.11-7ubuntu1",
        "2.7.12-1~16.04",
        "2.7.12-1ubuntu0~16.04.1",
        "2.7.12-1ubuntu0~16.04.2",
        "2.7.12-1ubuntu0~16.04.3",
        "2.7.12-1ubuntu0~16.04.4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "idle-python3.5",
            "binary_version": "3.5.2-2ubuntu0~16.04.8"
          },
          {
            "binary_name": "libpython3.5",
            "binary_version": "3.5.2-2ubuntu0~16.04.8"
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            "binary_name": "libpython3.5-minimal",
            "binary_version": "3.5.2-2ubuntu0~16.04.8"
          },
          {
            "binary_name": "libpython3.5-stdlib",
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            "binary_name": "libpython3.5-testsuite",
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            "binary_name": "python3.5",
            "binary_version": "3.5.2-2ubuntu0~16.04.8"
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            "binary_name": "python3.5-examples",
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            "binary_name": "python3.5-minimal",
            "binary_version": "3.5.2-2ubuntu0~16.04.8"
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            "binary_name": "python3.5-venv",
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        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "python3.5",
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      },
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          "events": [
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          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.5.0-3",
        "3.5.0-3ubuntu1",
        "3.5.1~rc1-2ubuntu1",
        "3.5.1-1",
        "3.5.1-2",
        "3.5.1-3",
        "3.5.1-5",
        "3.5.1-6ubuntu1",
        "3.5.1-6ubuntu2",
        "3.5.1-9ubuntu1",
        "3.5.1-10",
        "3.5.2-2~16.01",
        "3.5.2-2~16.04",
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        "3.5.2-2ubuntu0~16.04.2",
        "3.5.2-2ubuntu0~16.04.3",
        "3.5.2-2ubuntu0~16.04.4",
        "3.5.2-2ubuntu0~16.04.5"
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    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "idle-python2.7",
            "binary_version": "2.7.15-4ubuntu4~18.04.1"
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            "binary_name": "libpython2.7",
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      "versions": [
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    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "idle-python3.6",
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          },
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      "package": {
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        "name": "python3.6",
        "purl": "pkg:deb/ubuntu/python3.6@3.6.8-1~18.04.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.8-1~18.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.6.3-1ubuntu1",
        "3.6.4~rc1-1",
        "3.6.4~rc1-2",
        "3.6.4-1",
        "3.6.4-2",
        "3.6.4-3build1",
        "3.6.4-4",
        "3.6.5~rc1-1",
        "3.6.5-3",
        "3.6.6-1~18.04",
        "3.6.7-1~18.04",
        "3.6.8-1~18.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "An exploitable denial-of-service vulnerability exists in the X509 certificate parser of Python.org Python 2.7.11 / 3.6.6. A specially crafted X509 certificate can cause a NULL pointer dereference, resulting in a denial of service. An attacker can initiate or accept TLS connections using crafted certificates to trigger this vulnerability.",
  "id": "UBUNTU-CVE-2019-5010",
  "modified": "2026-04-22T07:38:52Z",
  "published": "2019-01-18T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-5010"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/python/cpython/pull/11569"
    },
    {
      "type": "REPORT",
      "url": "https://python-security.readthedocs.io/vuln/ssl-crl-dps-dos.html"
    },
    {
      "type": "REPORT",
      "url": "https://blog.talosintelligence.com/2019/01/vulnerability-spotlight-pythonorg.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4127-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4127-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-5010"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6891-1"
    }
  ],
  "related": [
    "USN-4127-1",
    "USN-4127-2",
    "USN-6891-1"
  ],
  "schema_version": "1.7.0",
  "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": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-5010"
  ]
}



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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

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.

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