usn-5051-3
Vulnerability from osv_ubuntu
Published
2021-08-26 12:53
Modified
2026-04-27 14:11
Summary
openssl1.0 vulnerability
Details

USN-5051-1 fixed a vulnerability in OpenSSL. This update provides the corresponding update for the openssl1.0 package in Ubuntu 18.04 LTS.

Original advisory details:

Ingo Schwarze discovered that OpenSSL incorrectly handled certain ASN.1 strings. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2021-3712)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-3712",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/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": "libssl1.0.0",
            "binary_version": "1.0.2n-1ubuntu5.7"
          },
          {
            "binary_name": "openssl1.0",
            "binary_version": "1.0.2n-1ubuntu5.7"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "openssl1.0",
        "purl": "pkg:deb/ubuntu/openssl1.0@1.0.2n-1ubuntu5.7?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.2n-1ubuntu5.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.2n-1ubuntu2",
        "1.0.2n-1ubuntu3",
        "1.0.2n-1ubuntu4",
        "1.0.2n-1ubuntu5",
        "1.0.2n-1ubuntu5.1",
        "1.0.2n-1ubuntu5.2",
        "1.0.2n-1ubuntu5.3",
        "1.0.2n-1ubuntu5.4",
        "1.0.2n-1ubuntu5.5",
        "1.0.2n-1ubuntu5.6"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-5051-1 fixed a vulnerability in OpenSSL. This update provides the\ncorresponding update for the openssl1.0 package in Ubuntu 18.04 LTS.\n\nOriginal advisory details:\n\n Ingo Schwarze discovered that OpenSSL incorrectly handled certain ASN.1\n strings. A remote attacker could use this issue to cause OpenSSL to crash,\n resulting in a denial of service, or possibly obtain sensitive information.\n (CVE-2021-3712)\n",
  "id": "USN-5051-3",
  "modified": "2026-04-27T14:11:27Z",
  "published": "2021-08-26T12:53:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5051-3"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3712"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "openssl1.0 vulnerability",
  "upstream": [
    "UBUNTU-CVE-2021-3712"
  ]
}



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Nomenclature

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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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