{
  "schema_version": "1.7.0",
  "id": "MGASA-2015-0152",
  "published": "2015-04-15T09:01:28Z",
  "modified": "2015-04-15T08:49:01Z",
  "summary": "Updated ntp packages fix security vulnerabilities",
  "details": "Updated ntp packages fix security vulnerabilities:\n\nThe symmetric-key feature in the receive function in ntp_proto.c in ntpd in\nNTP before 4.2.8p2 requires a correct MAC only if the MAC field has a nonzero\nlength, which makes it easier for man-in-the-middle attackers to spoof packets\nby omitting the MAC (CVE-2015-1798).\n\nThe symmetric-key feature in the receive function in ntp_proto.c in ntpd in\nNTP before 4.2.8p2 performs state-variable updates upon receiving certain\ninvalid packets, which makes it easier for man-in-the-middle attackers to\ncause a denial of service (synchronization loss) by spoofing the source IP\naddress of a peer (CVE-2015-1799).\n",
  "upstream": [
    "CVE-2015-1798",
    "CVE-2015-1799"
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://advisories.mageia.org/MGASA-2015-0152.html"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.mageia.org/show_bug.cgi?id=15646"
    },
    {
      "type": "WEB",
      "url": "http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Mageia:4",
        "name": "ntp",
        "purl": "pkg:rpm/mageia/ntp?arch=source&distro=mageia-4"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.2.6p5-15.5.mga4"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "section": "core"
      }
    }
  ],
  "credits": [
    {
      "name": "Mageia",
      "type": "COORDINATOR",
      "contact": [
        "https://wiki.mageia.org/en/Packages_Security_Team"
      ]
    }
  ]
}