Vulnerability-Lookup

ubuntu-cve-2015-3294

Vulnerability from osv_ubuntu

Published

2015-04-27 00:00

Modified

2025-07-16 04:50

Summary

Details

The tcp_request function in Dnsmasq before 2.73rc4 does not properly handle the return value of the setup_reply function, which allows remote attackers to read process memory and cause a denial of service (out-of-bounds read and crash) via a malformed DNS request.

Severity

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2015-3294	REPORT
	http://lists.thekelleys.org.uk/pipermail/dnsmasq-…	REPORT
	https://www.obrela.com/home/security-labs/advisor…	REPORT
	https://ubuntu.com/security/notices/USN-2593-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2015-3294	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "dnsmasq",
            "binary_version": "2.68-1ubuntu0.1"
          },
          {
            "binary_name": "dnsmasq-base",
            "binary_version": "2.68-1ubuntu0.1"
          },
          {
            "binary_name": "dnsmasq-utils",
            "binary_version": "2.68-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "dnsmasq",
        "purl": "pkg:deb/ubuntu/dnsmasq@2.68-1ubuntu0.1?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.68-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.66-4ubuntu1",
        "2.67-1",
        "2.68-1"
      ]
    }
  ],
  "aliases": [],
  "details": "The tcp_request function in Dnsmasq before 2.73rc4 does not properly handle the return value of the setup_reply function, which allows remote attackers to read process memory and cause a denial of service (out-of-bounds read and crash) via a malformed DNS request.",
  "id": "UBUNTU-CVE-2015-3294",
  "modified": "2025-07-16T04:50:48Z",
  "published": "2015-04-27T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-3294"
    },
    {
      "type": "REPORT",
      "url": "http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009382.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.obrela.com/home/security-labs/advisories/osi-advisory-osi-1502/"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2593-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2015-3294"
    }
  ],
  "related": [
    "USN-2593-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2015-3294"
  ]
}

CVE-2015-3294 (GCVE-0-2015-3294)

Vulnerability from cvelistv5 – Published: 2015-05-08 14:00 – Updated: 2024-08-06 05:39

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

11 references

URL	Tags
http://www.debian.org/security/2015/dsa-3251	vendor-advisoryx_refsource_DEBIAN
http://lists.thekelleys.org.uk/pipermail/dnsmasq-…	mailing-listx_refsource_MLIST
http://lists.opensuse.org/opensuse-updates/2015-0…	vendor-advisoryx_refsource_SUSE
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3B…	x_refsource_CONFIRM
http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-2593-1	vendor-advisoryx_refsource_UBUNTU
https://security.gentoo.org/glsa/201512-01	vendor-advisoryx_refsource_GENTOO
http://lists.thekelleys.org.uk/pipermail/dnsmasq-…	mailing-listx_refsource_MLIST
http://www.securitytracker.com/id/1032195	vdb-entryx_refsource_SECTRACK
http://www.securityfocus.com/bid/74452	vdb-entryx_refsource_BID
http://www.securityfocus.com/archive/1/535354/100…	mailing-listx_refsource_BUGTRAQ

Date Public

2015-04-07 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-06T05:39:32.054Z",
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        },
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            "tags": [
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              "x_refsource_DEBIAN",
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            "url": "http://www.debian.org/security/2015/dsa-3251"
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          {
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          },
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          "url": "http://www.debian.org/security/2015/dsa-3251"
        },
        {
          "name": "[Dnsmasq-discuss] 20150407 dnsmsaq potential vulnerability",
          "tags": [
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            "x_refsource_MLIST"
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        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
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        },
        {
          "name": "USN-2593-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-2593-1"
        },
        {
          "name": "GLSA-201512-01",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/201512-01"
        },
        {
          "name": "[Dnsmasq-discuss] 20150407 dnsmsaq potential vulnerability",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009387.html"
        },
        {
          "name": "1032195",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1032195"
        },
        {
          "name": "74452",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/74452"
        },
        {
          "name": "20150423 Dnsmasq 2.72 Unchecked returned value",
          "tags": [
            "mailing-list",
            "x_refsource_BUGTRAQ"
          ],
          "url": "http://www.securityfocus.com/archive/1/535354/100/1100/threaded"
        }
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      "x_legacyV4Record": {
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            "vendor_data": [
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              "url": "http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009382.html"
            },
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            {
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            },
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    "dateReserved": "2015-04-10T00:00:00.000Z",
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  "dataVersion": "5.1"
}

usn-2593-1

Vulnerability from osv_ubuntu

Published

2015-05-04 16:46

Modified

2026-02-10 04:40

Summary

dnsmasq vulnerability

Details

Nick Sampanis discovered that Dnsmasq incorrectly handled certain malformed DNS requests. A remote attacker could use this issue to cause Dnsmasq to crash, resulting in a denial of service, or possibly obtain sensitive information.

References

URL

Type

	https://ubuntu.com/security/notices/USN-2593-1	ADVISORY
	https://ubuntu.com/security/CVE-2015-3294	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2015-3294",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "dnsmasq",
            "binary_version": "2.68-1ubuntu0.1"
          },
          {
            "binary_name": "dnsmasq-base",
            "binary_version": "2.68-1ubuntu0.1"
          },
          {
            "binary_name": "dnsmasq-utils",
            "binary_version": "2.68-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "dnsmasq",
        "purl": "pkg:deb/ubuntu/dnsmasq@2.68-1ubuntu0.1?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.68-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.66-4ubuntu1",
        "2.67-1",
        "2.68-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Nick Sampanis discovered that Dnsmasq incorrectly handled certain malformed\nDNS requests. A remote attacker could use this issue to cause Dnsmasq to\ncrash, resulting in a denial of service, or possibly obtain sensitive\ninformation.\n",
  "id": "USN-2593-1",
  "modified": "2026-02-10T04:40:53Z",
  "published": "2015-05-04T16:46:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2593-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-3294"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "dnsmasq vulnerability",
  "upstream": [
    "UBUNTU-CVE-2015-3294"
  ]
}

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.

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.

Action not permitted

ubuntu-cve-2015-3294

Vulnerability from osv_ubuntu

CVE-2015-3294 (GCVE-0-2015-3294)

usn-2593-1

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature