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v2.6.28 anteriores a v2.6.28.7 utiliza el componente de la estructura i_size_high sobre tipos de ficheros de su elecci\u00f3n, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (consumo de CPU y la inundaci\u00f3n de mensajes de error) por tratar de montar un sistema de archivos ext4 manipulado."}], "id": "CVE-2009-0747", "lastModified": "2025-04-09T00:30:58.490", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 4.9, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2009-02-27T17:30:09.953", 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"cve@mitre.org", "url": "http://www.ubuntu.com/usn/usn-751-1"}, {"source": "cve@mitre.org", "url": "http://www.vmware.com/security/advisories/VMSA-2009-0016.html"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://www.vupen.com/english/advisories/2009/0509"}, {"source": "cve@mitre.org", "url": "http://www.vupen.com/english/advisories/2009/3316"}, {"source": "cve@mitre.org", "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8585"}, {"source": "cve@mitre.org", "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9200"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://bugzilla.kernel.org/show_bug.cgi?id=12375"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=06a279d636734da32bb62dd2f7b0ade666f65d7c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.19"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://rhn.redhat.com/errata/RHSA-2009-1243.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://secunia.com/advisories/34394"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://secunia.com/advisories/36562"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://secunia.com/advisories/37471"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.debian.org/security/2009/dsa-1749"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/archive/1/507985/100/0/threaded"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.ubuntu.com/usn/usn-751-1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.vmware.com/security/advisories/VMSA-2009-0016.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://www.vupen.com/english/advisories/2009/0509"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.vupen.com/english/advisories/2009/3316"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8585"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9200"}], "sourceIdentifier": "cve@mitre.org", "vendorComments": [{"comment": "This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, 4, and Red Hat Enterprise MRG. \n\nThis issue was addressed in Red Hat Enterprise Linux 5 by\nhttps://rhn.redhat.com/errata/RHSA-2009-1243.html", "lastModified": "2009-09-02T00:00:00", "organization": "Red Hat"}], "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-399"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2009:1243", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "kernel-0:2.6.18-164.el5", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2009-09-02T00:00:00Z"}], "bugzilla": {"description": "kernel: ext4: ext4_isize() denial of service", "id": "487942", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=487942"}, "csaw": false, "cvss": {"cvss_base_score": "4.9", "cvss_scoring_vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "status": "verified"}, "details": ["The ext4_isize function in fs/ext4/ext4.h in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 uses the i_size_high structure member during operations on arbitrary types of files, which allows local users to cause a denial of service (CPU consumption and error-message flood) by attempting to mount a crafted ext4 filesystem."], "name": "CVE-2009-0747", "public_date": "2009-01-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2009-0747\nhttps://nvd.nist.gov/vuln/detail/CVE-2009-0747"], "statement": "This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, 4, and Red Hat Enterprise MRG.", "threat_severity": "Low"}