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"vulnerable": true}, {"criteria": "cpe:2.3:a:thekelleys:dnsmasq:2.48:*:*:*:*:*:*:*", "matchCriteriaId": "558DDC2F-DAF6-42BE-B36A-D998EBADBC95", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "La funci\u00f3n tftp_request en tftp.c en dnsmasq en versiones anteriores a la 2.50, cuando se usa --enable-tftp, permite a atacantes remotos provocar una denegaci\u00f3n de servicio (referencia a un puntero nulo y ca\u00edda del demonio) mediante una petici\u00f3n de lectura TFTP (alias RRQ) con una opci\u00f3n blksize malformada."}], "id": "CVE-2009-2958", "lastModified": "2026-04-23T00:35:47.467", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2009-09-02T15:30:01.467", "references": [{"source": "cve@mitre.org", "url": "http://secunia.com/advisories/36563"}, {"source": "cve@mitre.org", "url": "http://www.coresecurity.com/content/dnsmasq-vulnerabilities"}, {"source": "cve@mitre.org", "url": "http://www.redhat.com/support/errata/RHSA-2009-1238.html"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/bid/36120"}, {"source": "cve@mitre.org", "url": "http://www.thekelleys.org.uk/dnsmasq/CHANGELOG"}, {"source": "cve@mitre.org", "url": "http://www.ubuntu.com/usn/USN-827-1"}, {"source": "cve@mitre.org", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=519020"}, {"source": "cve@mitre.org", "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9816"}, {"source": "cve@mitre.org", "url": "https://rhn.redhat.com/errata/RHSA-2010-0095.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://secunia.com/advisories/36563"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.coresecurity.com/content/dnsmasq-vulnerabilities"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.redhat.com/support/errata/RHSA-2009-1238.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/36120"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.thekelleys.org.uk/dnsmasq/CHANGELOG"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.ubuntu.com/usn/USN-827-1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=519020"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9816"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://rhn.redhat.com/errata/RHSA-2010-0095.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-399"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2009:1238", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "dnsmasq-0:2.45-1.1.el5_3", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2009-09-01T00:00:00Z"}], "bugzilla": {"description": "dnsmasq: multiple vulnerabilities in TFTP server", "id": "519020", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=519020"}, "csaw": false, "cvss": {"cvss_base_score": "6.8", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "status": "verified"}, "details": ["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."], "name": "CVE-2009-2958", "public_date": "2009-08-31T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2009-2958\nhttps://nvd.nist.gov/vuln/detail/CVE-2009-2958"], "threat_severity": "Important"}