CVE-2012-4508

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En el kernel Linux antes de v3.4.16 permite a usuarios locales obtener informaci\u00f3n sensible de un archivo eliminado mediante la lectura de un 'extent' que no fue correctamente marcado como 'no inicializado' .\r\n"}], "id": "CVE-2012-4508", "lastModified": "2026-06-16T23:45:13.860", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 1.9, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2012-12-21T11:47:36.580", "references": [{"source": "secalert@redhat.com", "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=dee1f973ca341c266229faa5a1a5bb268bed3531"}, {"source": "secalert@redhat.com", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091110.html"}, {"source": "secalert@redhat.com", "url": "http://rhn.redhat.com/errata/RHSA-2012-1540.html"}, {"source": "secalert@redhat.com", "url": "http://rhn.redhat.com/errata/RHSA-2013-0496.html"}, {"source": "secalert@redhat.com", "url": "http://rhn.redhat.com/errata/RHSA-2013-1519.html"}, {"source": "secalert@redhat.com", "url": "http://rhn.redhat.com/errata/RHSA-2013-1783.html"}, {"source": "secalert@redhat.com", "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.16"}, {"source": "secalert@redhat.com", "url": "http://www.openwall.com/lists/oss-security/2012/10/25/1"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-1645-1"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-1899-1"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-1900-1"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=869904"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "https://github.com/torvalds/linux/commit/dee1f973ca341c266229faa5a1a5bb268bed3531"}, {"source": "secalert@redhat.com", "url": "https://www.suse.com/support/update/announcement/2012/suse-su-20121679-1.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=dee1f973ca341c266229faa5a1a5bb268bed3531"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091110.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://rhn.redhat.com/errata/RHSA-2012-1540.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://rhn.redhat.com/errata/RHSA-2013-0496.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://rhn.redhat.com/errata/RHSA-2013-1519.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://rhn.redhat.com/errata/RHSA-2013-1783.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.16"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2012/10/25/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.ubuntu.com/usn/USN-1645-1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.ubuntu.com/usn/USN-1899-1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.ubuntu.com/usn/USN-1900-1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=869904"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/torvalds/linux/commit/dee1f973ca341c266229faa5a1a5bb268bed3531"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://www.suse.com/support/update/announcement/2012/suse-su-20121679-1.html"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Theodore Ts'o for reporting this issue.", "affected_release": [{"advisory": "RHSA-2012:1540", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "kernel-0:2.6.18-308.24.1.el5", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2012-12-04T00:00:00Z"}, {"advisory": "RHSA-2013:0496", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "kernel-0:2.6.32-358.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2013-02-20T00:00:00Z"}, {"advisory": "RHSA-2013:1519", "cpe": "cpe:/o:redhat:rhel_eus:6.2", "package": "kernel-0:2.6.32-220.45.1.el6", "product_name": "Red Hat Enterprise Linux 6.2 EUS - Server and Compute Node Only", "release_date": "2013-11-13T00:00:00Z"}, {"advisory": "RHSA-2013:1783", "cpe": "cpe:/o:redhat:rhel_eus:6.3", "package": "kernel-0:2.6.32-279.39.1.el6", "product_name": "Red Hat Enterprise Linux 6.3 EUS - Server and Compute Node Only", "release_date": "2013-12-05T00:00:00Z"}, {"advisory": "RHSA-2012:1491", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-0:3.2.33-rt50.66.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2012-12-04T00:00:00Z"}], "bugzilla": {"description": "kernel: ext4: AIO vs fallocate stale data exposure", "id": "869904", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=869904"}, "csaw": false, "cvss": {"cvss_base_score": "4.9", "cvss_scoring_vector": "AV:L/AC:L/Au:N/C:C/I:N/A:N", "status": "verified"}, "details": ["Race condition in fs/ext4/extents.c in the Linux kernel before 3.4.16 allows local users to obtain sensitive information from a deleted file by reading an extent that was not properly marked as uninitialized."], "name": "CVE-2012-4508", "public_date": "2012-10-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2012-4508\nhttps://nvd.nist.gov/vuln/detail/CVE-2012-4508"], "threat_severity": "Important"}

{}