CVE-2011-2503

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between the signature validation and the module initialization."}, {"lang": "es", "value": "La funci\u00f3n insert_module en tiempo de ejecuci\u00f3n/staprun/staprun_funcs.c en la herramienta de tiempo de ejecuci\u00f3n systemtap (staprun) en SystemTap antes de v1.6 no valida correctamente un m\u00f3dulo cuando se carga, lo que permite a usuarios locales conseguir privilegios a trav\u00e9s de una condici\u00f3n de carrera entre la validaci\u00f3n de la firma y el m\u00f3dulo de inicializaci\u00f3n.\r\n"}], "id": "CVE-2011-2503", "lastModified": "2026-06-16T23:31:28.040", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "HIGH", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 3.7, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:H/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 1.9, "impactScore": 6.4, "obtainAllPrivilege": 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{"affected_release": [{"advisory": "RHSA-2011:1089", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "systemtap-0:1.3-9.el5", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2011-07-25T00:00:00Z"}, {"advisory": "RHSA-2011:1088", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "systemtap-0:1.4-6.el6_1.2", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2011-07-25T00:00:00Z"}], "bugzilla": {"description": "systemtap: signed module loading race condition", "id": "716489", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=716489"}, "csaw": false, "cvss": {"cvss_base_score": "6.0", "cvss_scoring_vector": "AV:L/AC:H/Au:S/C:C/I:C/A:C", "status": "verified"}, "details": ["The insert_module function in runtime/staprun/staprun_funcs.c in the systemtap runtime tool (staprun) in SystemTap before 1.6 does not properly validate a module when loading it, which allows local users to gain privileges via a race condition between the signature validation and the module initialization."], "name": "CVE-2011-2503", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:4", "fix_state": "Will not fix", "impact": "low", "package_name": "systemtap", "product_name": "Red Hat Enterprise Linux 4"}], "public_date": "2011-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-2503\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-2503\nhttp://sources.redhat.com/git/gitweb.cgi?p=systemtap.git;a=commitdiff;h=ed51cfa24ca27746ab09b59280b94117dd58cba3"], "threat_severity": "Moderate"}

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