ubuntu-cve-2015-1821
Vulnerability from osv_ubuntu
Published
2015-04-16 14:59
Modified
2025-09-08 16:43
Summary
Details

Heap-based buffer overflow in chrony before 1.31.1 allows remote authenticated users to cause a denial of service (chronyd crash) or possibly execute arbitrary code by configuring the (1) NTP or (2) cmdmon access with a subnet size that is indivisible by four and an address with a nonzero bit in the subnet remainder.

Severity
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "chrony",
            "binary_version": "1.29-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "chrony",
        "purl": "pkg:deb/ubuntu/chrony@1.29-1ubuntu0.1?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.29-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.26-4",
        "1.29-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Heap-based buffer overflow in chrony before 1.31.1 allows remote authenticated users to cause a denial of service (chronyd crash) or possibly execute arbitrary code by configuring the (1) NTP or (2) cmdmon access with a subnet size that is indivisible by four and an address with a nonzero bit in the subnet remainder.",
  "id": "UBUNTU-CVE-2015-1821",
  "modified": "2025-09-08T16:43:20Z",
  "published": "2015-04-16T14:59:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-1821"
    },
    {
      "type": "REPORT",
      "url": "http://git.tuxfamily.org/chrony/chrony.git/commit/?h=1.31-security\u0026id=cf19042ecb656b8afec0cc4906e7dd3ea9266ac8"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2015-1821"
    },
    {
      "type": "REPORT",
      "url": "http://chrony.tuxfamily.org/News.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2015-1821"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2015-1821"
  ]
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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