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NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-1083."}, {"lang": "es", "value": "La llamada al sistema epoll_ctl en fs/eventpoll.c en el Kernel de Linux anteriores a v3.2.24 no gestiona de forma adecuada errores ELOOP en operaciones EPOLL_CTL_ADD, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (consumo de descriptores de ficheros y ca\u00edda del sistema) a trav\u00e9s de una aplicaci\u00f3n manipulada que intenta crear una dependencia epoll circular. 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{"affected_release": [{"advisory": "RHSA-2012:1061", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "kernel-0:2.6.18-308.11.1.el5", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2012-07-10T00:00:00Z"}, {"advisory": "RHSA-2012:1150", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-0:3.0.36-rt57.66.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2012-08-08T00:00:00Z"}], "bugzilla": {"description": "kernel: epoll: can leak file descriptors when returning -ELOOP", "id": "837502", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=837502"}, "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 epoll_ctl system call in fs/eventpoll.c in the Linux kernel before 3.2.24 does not properly handle ELOOP errors in EPOLL_CTL_ADD operations, which allows local users to cause a denial of service (file-descriptor consumption and system crash) via a crafted application that attempts to create a circular epoll dependency. NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-1083."], "name": "CVE-2012-3375", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:rhel_eus:6.2", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux Extended Update Support 6.2"}], "public_date": "2012-03-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2012-3375\nhttps://nvd.nist.gov/vuln/detail/CVE-2012-3375"], "statement": "This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 6, since updates fixing CVE-2011-1083 contained a corrected patch that did not introduce this regression. \nThis has been addressed in Red Hat Enterprise Linux 5 via https://rhn.redhat.com/errata/RHSA-2012-1061.html, and Red Hat Enterprise Linux Red Hat Enterprise MRG 2 via https://rhn.redhat.com/errata/RHSA-2012-1150.html", "threat_severity": "Moderate"}