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{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2015-0282",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2015-0294",
              "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": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "gnutls-bin",
            "binary_version": "3.0.11+really2.12.23-12ubuntu2.2"
          },
          {
            "binary_name": "libgnutls-openssl27",
            "binary_version": "2.12.23-12ubuntu2.2"
          },
          {
            "binary_name": "libgnutls26",
            "binary_version": "2.12.23-12ubuntu2.2"
          },
          {
            "binary_name": "libgnutlsxx27",
            "binary_version": "2.12.23-12ubuntu2.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "gnutls26",
        "purl": "pkg:deb/ubuntu/gnutls26@2.12.23-12ubuntu2.2?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.12.23-12ubuntu2.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.12.23-1ubuntu4",
        "2.12.23-1ubuntu5",
        "2.12.23-12ubuntu1",
        "2.12.23-12ubuntu2",
        "2.12.23-12ubuntu2.1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that GnuTLS did not perform date and time checks on\nCA certificates, contrary to expectations. This issue only affected\nUbuntu 10.04 LTS. (CVE-2014-8155)\n\nNikos Mavrogiannopoulos discovered that GnuTLS incorrectly verified that\nsignature algorithms matched. A remote attacker could possibly use this\nissue to downgrade to a disallowed algorithm. This issue only affected\nUbuntu 10.04 LTS, Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-0282)\n\nIt was discovered that GnuTLS incorrectly verified certificate algorithms.\nA remote attacker could possibly use this issue to downgrade to a\ndisallowed algorithm. (CVE-2015-0294)\n",
  "id": "USN-2540-1",
  "modified": "2026-04-22T07:36:32Z",
  "published": "2015-03-23T19:13:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2540-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2014-8155"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-0282"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-0294"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "gnutls26, gnutls28 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2014-8155",
    "UBUNTU-CVE-2015-0282",
    "UBUNTU-CVE-2015-0294"
  ]
}