CVE-2012-0879

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properly handle the CLONE_IO feature, which allows local users to cause a denial of service (I/O instability) by starting multiple processes that share an I/O context."}, {"lang": "es", "value": "La implementaci\u00f3n I/O para dispositivos de bloque en el n\u00facleo de Linux anteriores a v2.6.33 no maneja adecuadamente la caracter\u00edstica CLONE_IO, lo cual permite a usuarios locales causar una denegaci\u00f3n de servicio (inestabilidad I/O) arrancando m\u00faltiples procesos que comparten un contexto I/O."}], "id": "CVE-2012-0879", "lastModified": "2026-06-16T23:38:26.520", "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, 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{"affected_release": [{"advisory": "RHSA-2012:0481", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "kernel-0:2.6.32-220.13.1.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2012-04-17T00:00:00Z"}], "bugzilla": {"description": "kernel: block: CLONE_IO io_context refcounting issues", "id": "796829", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=796829"}, "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 I/O implementation for block devices in the Linux kernel before 2.6.33 does not properly handle the CLONE_IO feature, which allows local users to cause a denial of service (I/O instability) by starting multiple processes that share an I/O context."], "name": "CVE-2012-0879", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:4", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 4"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Not affected", "package_name": "realtime-kernel", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2009-12-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2012-0879\nhttps://nvd.nist.gov/vuln/detail/CVE-2012-0879"], "statement": "This issue affects the Linux kernel as shipped with Red Hat Enterprise Linux 6. This issue does not affect the Linux kernel as shipped with Red Hat Enterprise Linux 4 and 5 as they did not provide support for CLONE_IO. This issue does not affect the Linux kernel as shipped with Red Hat Enterprise MRG as they already contain the fix. This has been addressed in Red Hat Enterprise Linux 6 via https://rhn.redhat.com/errata/RHSA-2012-0481.html.", "threat_severity": "Moderate"}

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