CVE-2014-3145

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NOTE: the affected code was moved to the __skb_get_nlattr_nest function before the vulnerability was announced."}, {"lang": "es", "value": "La implementaci\u00f3n de extensi\u00f3n BPF_S_ANC_NLATTR_NEST en la funci\u00f3n sk_run_filter en net/core/filter.c en el kernel de Linux hasta 3.14.3 utiliza el orden inverso en cierta resta, lo que permite a usuarios locales causar una denegaci\u00f3n de servicio (sobrelectura y ca\u00edda de sistema) a trav\u00e9s de instrucciones BPF manipuladas. NOTA: el c\u00f3digo afectado fue trasladado a la funci\u00f3n __skb_get_nlattr_nest antes de anunciar la vulnerabilidad."}], "id": "CVE-2014-3145", "lastModified": "2026-06-17T00:07:39.930", "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": "2014-05-11T21:55:06.187", "references": [{"source": "secalert@redhat.com", "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=05ab8f2647e4221cbdb3856dd7d32bd5407316b3"}, {"source": 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{"affected_release": [{"advisory": "RHSA-2014:0981", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "kernel-0:2.6.32-431.23.3.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2014-07-29T00:00:00Z"}, {"advisory": "RHSA-2014:0786", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-123.4.2.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2014-06-24T00:00:00Z"}, {"advisory": "RHSA-2014:0913", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-0:3.10.33-rt32.43.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2014-07-22T00:00:00Z"}], "bugzilla": {"description": "Kernel: filter: prevent nla extensions to peek beyond the end of the message", "id": "1096775", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1096775"}, "csaw": false, "cvss": {"cvss_base_score": "5.4", "cvss_scoring_vector": "AV:L/AC:M/Au:N/C:P/I:N/A:C", "status": "verified"}, "details": ["The BPF_S_ANC_NLATTR_NEST extension implementation in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 uses the reverse order in a certain subtraction, which allows local users to cause a denial of service (over-read and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr_nest function before the vulnerability was announced."], "name": "CVE-2014-3145", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2014-04-13T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2014-3145\nhttps://nvd.nist.gov/vuln/detail/CVE-2014-3145"], "statement": "This issue does not affect the version of the kernel package as shipped with Red Hat Enterprise Linux 5.", "threat_severity": "Moderate"}

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