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{"affected_release": [{"advisory": "RHSA-2011:1253", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-0:2.6.33.9-rt31.75.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2011-09-12T00:00:00Z"}], "bugzilla": {"description": "kernel: /sys/kernel/debug/acpi/custom_method can bypass module restrictions", "id": "680841", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=680841"}, "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": ["drivers/acpi/debugfs.c in the Linux kernel before 3.0 allows local users to modify arbitrary kernel memory locations by leveraging root privileges to write to the /sys/kernel/debug/acpi/custom_method file. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-4347."], "name": "CVE-2011-1021", "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:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2011-02-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-1021\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-1021"], "statement": "The version of Linux kernel as shipped with Red Hat Enterprise Linux 4, 5, and 6 as they did not include upstream commit a1a541d8 and a25ee920 that introduced the problem. This has been addressed in Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-1253.html.\nNotes:\nThis requires debugfs to be mounted on a local system in order to have access\nto the custom_method file. Debugfs is not mounted by default. You need to run\n\"mount -t debugfs nodev /sys/kernel/debug\" as root first.", "threat_severity": "Moderate"}

{}