usn-2449-1
Vulnerability from osv_ubuntu
Published
2014-12-22 13:12
Modified
2026-02-10 04:40
Summary
ntp vulnerabilities
Details

Neel Mehta discovered that NTP generated weak authentication keys. A remote attacker could possibly use this issue to brute force the authentication key and send requests if permitted by IP restrictions. (CVE-2014-9293)

Stephen Roettger discovered that NTP generated weak MD5 keys. A remote attacker could possibly use this issue to brute force the MD5 key and spoof a client or server. (CVE-2014-9294)

Stephen Roettger discovered that NTP contained buffer overflows in the crypto_recv(), ctl_putdata() and configure() functions. In non-default configurations, a remote attacker could use these issues to cause NTP to crash, resulting in a denial of service, or possibly execute arbitrary code. The default compiler options for affected releases should reduce the vulnerability to a denial of service. In addition, attackers would be isolated by the NTP AppArmor profile. (CVE-2014-9295)

Stephen Roettger discovered that NTP incorrectly continued processing when handling certain errors. (CVE-2014-9296)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2014-9293",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2014-9294",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2014-9295",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2014-9296",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "ntp",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.1"
          },
          {
            "binary_name": "ntpdate",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "ntp",
        "purl": "pkg:deb/ubuntu/ntp@1:4.2.6.p5+dfsg-3ubuntu2.14.04.1?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:4.2.6.p5+dfsg-3ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "Neel Mehta discovered that NTP generated weak authentication keys. A remote\nattacker could possibly use this issue to brute force the authentication\nkey and send requests if permitted by IP restrictions. (CVE-2014-9293)\n\nStephen Roettger discovered that NTP generated weak MD5 keys. A remote\nattacker could possibly use this issue to brute force the MD5 key and spoof\na client or server. (CVE-2014-9294)\n\nStephen Roettger discovered that NTP contained buffer overflows in the\ncrypto_recv(), ctl_putdata() and configure() functions. In non-default\nconfigurations, a remote attacker could use these issues to cause NTP to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. The default compiler options for affected releases should reduce the\nvulnerability to a denial of service. In addition, attackers would be\nisolated by the NTP AppArmor profile. (CVE-2014-9295)\n\nStephen Roettger discovered that NTP incorrectly continued processing when\nhandling certain errors. (CVE-2014-9296)\n",
  "id": "USN-2449-1",
  "modified": "2026-02-10T04:40:51Z",
  "published": "2014-12-22T13:12:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2449-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2014-9293"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2014-9294"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2014-9295"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2014-9296"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "ntp vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2014-9293",
    "UBUNTU-CVE-2014-9294",
    "UBUNTU-CVE-2014-9295",
    "UBUNTU-CVE-2014-9296"
  ]
}



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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.


Detection rules are retrieved from Rulezet.