CVE-2007-4571

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a 2.6.22.8 no devuelve el tama\u00f1o de escritura correcto, lo cual permite a usuarios locales obtener informaci\u00f3n sensible (contenidos de la memoria del n\u00facleo) mediante un argumento de cuenta peque\u00f1o, como ha sido demostrado mediante m\u00faltiples lecturas de /proc/driver/snd-page-alloc."}], "id": "CVE-2007-4571", "lastModified": "2026-06-16T22:44:21.123", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2007-09-26T10:17:00.000", "references": 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{"acknowledgement": "Red Hat would like to thank Neil Kettle and iDefense for reporting this issue.", "affected_release": [{"advisory": "RHSA-2007:0939", "cpe": "cpe:/o:redhat:enterprise_linux:4", "package": "kernel-0:2.6.9-55.0.12.EL", "product_name": "Red Hat Enterprise Linux 4", "release_date": "2007-11-01T00:00:00Z"}, {"advisory": "RHSA-2007:0993", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "kernel-0:2.6.18-53.1.4.el5", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2007-11-29T00:00:00Z"}], "bugzilla": {"description": "ALSA memory disclosure flaw", "id": "288961", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=288961"}, "csaw": false, "details": ["The snd_mem_proc_read function in sound/core/memalloc.c in the Advanced Linux Sound Architecture (ALSA) in the Linux kernel before 2.6.22.8 does not return the correct write size, which allows local users to obtain sensitive information (kernel memory contents) via a small count argument, as demonstrated by multiple reads of /proc/driver/snd-page-alloc."], "name": "CVE-2007-4571", "public_date": "2007-09-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2007-4571\nhttps://nvd.nist.gov/vuln/detail/CVE-2007-4571"], "statement": "This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 2.1 or 3.", "threat_severity": "Moderate"}

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