usn-2540-1
Vulnerability from osv_ubuntu
Published
2015-03-23 19:13
Modified
2026-04-22 07:36
Summary
gnutls26, gnutls28 vulnerabilities
Details

It was discovered that GnuTLS did not perform date and time checks on CA certificates, contrary to expectations. This issue only affected Ubuntu 10.04 LTS. (CVE-2014-8155)

Nikos Mavrogiannopoulos discovered that GnuTLS incorrectly verified that signature algorithms matched. A remote attacker could possibly use this issue to downgrade to a disallowed algorithm. This issue only affected Ubuntu 10.04 LTS, Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-0282)

It was discovered that GnuTLS incorrectly verified certificate algorithms. A remote attacker could possibly use this issue to downgrade to a disallowed algorithm. (CVE-2015-0294)

References
To clipboard 

{
  "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"
  ]
}



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