certfr_avis - certa-2009-avi-361

CERTA-2009-AVI-361

Vulnerability from certfr_avis - Published: - Updated:

Plusieurs vulnérabilités présentes dans Dnsmasq permettent à un utilisteur distant de provoquer un déni de service ou d'exécuter du code arbitraire.

Description

Deux vulnérabilités sont présentes dans Dnsmasq. Elles sont relatives à la mise en œuvre du protocole TFTP et permettent à un utilisateur distant malintentionné de provoquer un déni de service ou d'exécuter du code arbitraire. Dnsmasq doit être compilé avec le support du protocole TFTP pour que la faille soit exploitable.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

La version 2.50 corrige le problème :

http://www.thekelleys.org.uk/dnsmasq/

Dnsmasq versions 2.49 et antérieures.

Impacted products

	Vendor	Product	Description

References

Title

Publication Time

Tags

Liste des changements apportés à la version 2.50 de Dnsmasq

None

vendor-advisory

Show details on source website

JSON

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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [],
  "affected_systems_content": "\u003cp\u003eDnsmasq versions 2.49 et ant\u00e9rieures.\u003c/p\u003e",
  "content": "## Description\n\nDeux vuln\u00e9rabilit\u00e9s sont pr\u00e9sentes dans Dnsmasq. Elles sont relatives \u00e0\nla mise en \u0153uvre du protocole TFTP et permettent \u00e0 un utilisateur\ndistant malintentionn\u00e9 de provoquer un d\u00e9ni de service ou d\u0027ex\u00e9cuter du\ncode arbitraire. Dnsmasq doit \u00eatre compil\u00e9 avec le support du protocole\nTFTP pour que la faille soit exploitable.\n\n## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n\nLa version 2.50 corrige le probl\u00e8me :\n\n    http://www.thekelleys.org.uk/dnsmasq/\n",
  "cves": [
    {
      "name": "CVE-2009-2958",
      "url": "https://www.cve.org/CVERecord?id=CVE-2009-2958"
    },
    {
      "name": "CVE-2009-2957",
      "url": "https://www.cve.org/CVERecord?id=CVE-2009-2957"
    }
  ],
  "links": [],
  "reference": "CERTA-2009-AVI-361",
  "revisions": [
    {
      "description": "version initiale.",
      "revision_date": "2009-09-01T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service \u00e0 distance"
    },
    {
      "description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
    }
  ],
  "summary": "Plusieurs vuln\u00e9rabilit\u00e9s pr\u00e9sentes dans Dnsmasq permettent \u00e0 un\nutilisteur distant de provoquer un d\u00e9ni de service ou d\u0027ex\u00e9cuter du code\narbitraire.\n",
  "title": "Vuln\u00e9rabilit\u00e9 dans Dnsmasq",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Liste des changements apport\u00e9s \u00e0 la version 2.50 de Dnsmasq",
      "url": "http://www.thekelleys.org.uk/dnsmasq/CHANGELOG"
    }
  ]
}

CVE-2009-2958 (GCVE-0-2009-2958)

Vulnerability from cvelistv5 – Published: 2009-09-02 15:00 – Updated: 2024-08-07 06:07

Summary

The tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a TFTP read (aka RRQ) request with a malformed blksize option.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	http://secunia.com/advisories/36563	third-party-advisoryx_refsource_SECUNIA
	http://www.ubuntu.com/usn/USN-827-1	vendor-advisoryx_refsource_UBUNTU
	https://bugzilla.redhat.com/show_bug.cgi?id=519020	x_refsource_CONFIRM
	http://www.securityfocus.com/bid/36120	vdb-entryx_refsource_BID
	http://www.thekelleys.org.uk/dnsmasq/CHANGELOG	x_refsource_CONFIRM
	https://oval.cisecurity.org/repository/search/def…	vdb-entrysignaturex_refsource_OVAL
	http://www.coresecurity.com/content/dnsmasq-vulne…	x_refsource_MISC
	https://rhn.redhat.com/errata/RHSA-2010-0095.html	vendor-advisoryx_refsource_REDHAT
	http://www.redhat.com/support/errata/RHSA-2009-12…	vendor-advisoryx_refsource_REDHAT

Show details on NVD website

JSON

To clipboard

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CVE-2009-2957 (GCVE-0-2009-2957)

Vulnerability from cvelistv5 – Published: 2009-09-02 15:00 – Updated: 2024-08-07 06:07

Summary

Heap-based buffer overflow in the tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp is used, might allow remote attackers to execute arbitrary code via a long filename in a TFTP packet, as demonstrated by a read (aka RRQ) request.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

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	http://secunia.com/advisories/36563	third-party-advisoryx_refsource_SECUNIA
	http://www.ubuntu.com/usn/USN-827-1	vendor-advisoryx_refsource_UBUNTU
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	https://oval.cisecurity.org/repository/search/def…	vdb-entrysignaturex_refsource_OVAL
	http://www.thekelleys.org.uk/dnsmasq/CHANGELOG	x_refsource_CONFIRM
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	http://www.redhat.com/support/errata/RHSA-2009-12…	vendor-advisoryx_refsource_REDHAT

Show details on NVD website

JSON

To clipboard

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            },
            {
              "name": "http://www.thekelleys.org.uk/dnsmasq/CHANGELOG",
              "refsource": "CONFIRM",
              "url": "http://www.thekelleys.org.uk/dnsmasq/CHANGELOG"
            },
            {
              "name": "http://www.coresecurity.com/content/dnsmasq-vulnerabilities",
              "refsource": "MISC",
              "url": "http://www.coresecurity.com/content/dnsmasq-vulnerabilities"
            },
            {
              "name": "RHSA-2010:0095",
              "refsource": "REDHAT",
              "url": "https://rhn.redhat.com/errata/RHSA-2010-0095.html"
            },
            {
              "name": "RHSA-2009:1238",
              "refsource": "REDHAT",
              "url": "http://www.redhat.com/support/errata/RHSA-2009-1238.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2009-2957",
    "datePublished": "2009-09-02T15:00:00",
    "dateReserved": "2009-08-24T00:00:00",
    "dateUpdated": "2024-08-07T06:07:37.403Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Tags

Taxonomy of the tags.

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Sightings

Author	Source	Type	Date

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.

Action not permitted

CERTA-2009-AVI-361

Description

Solution

CVE-2009-2958 (GCVE-0-2009-2958)

CVE-2009-2957 (GCVE-0-2009-2957)

Tags

Sightings

Nomenclature