Vulnerability-Lookup

UBUNTU-CVE-2017-9445 (CVE-2017-9445)

Vulnerability from osv_ubuntu – Published: 2017-06-27 00:00 – Updated: 2026-04-22 07:38 – Source website

Details

In systemd through 233, certain sizes passed to dns_packet_new in systemd-resolved can cause it to allocate a buffer that's too small. A malicious DNS server can exploit this via a response with a specially crafted TCP payload to trick systemd-resolved into allocating a buffer that's too small, and subsequently write arbitrary data beyond the end of it.

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.5 (High)


                    
                      CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      high

References

URL

Type

	https://ubuntu.com/security/CVE-2017-9445	REPORT
	https://ubuntu.com/security/notices/USN-3341-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2017-9445	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss-myhostname",
            "binary_version": "229-4ubuntu19"
          },
          {
            "binary_name": "libnss-mymachines",
            "binary_version": "229-4ubuntu19"
          },
          {
            "binary_name": "libnss-resolve",
            "binary_version": "229-4ubuntu19"
          },
          {
            "binary_name": "libpam-systemd",
            "binary_version": "229-4ubuntu19"
          },
          {
            "binary_name": "libsystemd0",
            "binary_version": "229-4ubuntu19"
          },
          {
            "binary_name": "libudev1",
            "binary_version": "229-4ubuntu19"
          },
          {
            "binary_name": "systemd",
            "binary_version": "229-4ubuntu19"
          },
          {
            "binary_name": "systemd-container",
            "binary_version": "229-4ubuntu19"
          },
          {
            "binary_name": "systemd-coredump",
            "binary_version": "229-4ubuntu19"
          },
          {
            "binary_name": "systemd-journal-remote",
            "binary_version": "229-4ubuntu19"
          },
          {
            "binary_name": "systemd-sysv",
            "binary_version": "229-4ubuntu19"
          },
          {
            "binary_name": "udev",
            "binary_version": "229-4ubuntu19"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "systemd",
        "purl": "pkg:deb/ubuntu/systemd@229-4ubuntu19?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "229-4ubuntu19"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "225-1ubuntu9",
        "227-2ubuntu1",
        "227-2ubuntu2",
        "228-1ubuntu2",
        "228-2ubuntu1",
        "228-2ubuntu2",
        "228-3ubuntu1",
        "228-4ubuntu1",
        "228-4ubuntu2",
        "228-5ubuntu1",
        "228-5ubuntu2",
        "228-5ubuntu3",
        "228-6ubuntu1",
        "229-1ubuntu2",
        "229-1ubuntu4",
        "229-2ubuntu1",
        "229-3ubuntu1",
        "229-3ubuntu2",
        "229-4ubuntu1",
        "229-4ubuntu4",
        "229-4ubuntu5",
        "229-4ubuntu6",
        "229-4ubuntu7",
        "229-4ubuntu8",
        "229-4ubuntu10",
        "229-4ubuntu11",
        "229-4ubuntu12",
        "229-4ubuntu13",
        "229-4ubuntu16",
        "229-4ubuntu17"
      ]
    }
  ],
  "aliases": [],
  "details": "In systemd through 233, certain sizes passed to dns_packet_new in systemd-resolved can cause it to allocate a buffer that\u0027s too small. A malicious DNS server can exploit this via a response with a specially crafted TCP payload to trick systemd-resolved into allocating a buffer that\u0027s too small, and subsequently write arbitrary data beyond the end of it.",
  "id": "UBUNTU-CVE-2017-9445",
  "modified": "2026-04-22T07:38:16Z",
  "published": "2017-06-27T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2017-9445"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3341-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2017-9445"
    }
  ],
  "related": [
    "USN-3341-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "high",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2017-9445"
  ]
}

CVE-2017-9445 (GCVE-0-2017-9445)

Vulnerability from cvelistv5 – Published: 2017-06-28 06:00 – Updated: 2024-08-05 17:11

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

4 references

URL	Tags
https://launchpad.net/bugs/1695546	x_refsource_CONFIRM
http://www.securitytracker.com/id/1038806	vdb-entryx_refsource_SECTRACK
http://www.securityfocus.com/bid/99302	vdb-entryx_refsource_BID
http://openwall.com/lists/oss-security/2017/06/27/8	x_refsource_CONFIRM

Date Public

2017-06-28 00:00

Show details on NVD website

JSON

To clipboard

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

UBUNTU-CVE-2017-9445 (CVE-2017-9445)

CVE-2017-9445 (GCVE-0-2017-9445)

Tags

Sightings

Nomenclature

Related by attack behaviour