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{"acknowledgement": "Red Hat would like to thank Nelson Elhage for reporting this issue.", "bugzilla": {"description": "kernel: failure to revert address limit override in OOPS error path", "id": "659567", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=659567"}, "csaw": false, "cvss": {"cvss_base_score": "6.2", "cvss_scoring_vector": "AV:L/AC:H/Au:N/C:C/I:C/A:C", "status": "draft"}, "details": ["The do_exit function in kernel/exit.c in the Linux kernel before 2.6.36.2 does not properly handle a KERNEL_DS get_fs value, which allows local users to bypass intended access_ok restrictions, overwrite arbitrary kernel memory locations, and gain privileges by leveraging a (1) BUG, (2) NULL pointer dereference, or (3) page fault, as demonstrated by vectors involving the clear_child_tid feature and the splice system call."], "name": "CVE-2010-4258", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:4", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 4"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:1", "fix_state": "Affected", "package_name": "realtime-kernel", "product_name": "Red Hat Enterprise MRG 1"}], "public_date": "2010-12-03T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2010-4258\nhttps://nvd.nist.gov/vuln/detail/CVE-2010-4258"], "statement": "The Linux kernel as shipped with Red Hat Enterprise Linux 4, 5, 6, and Red Hat Enterprise MRG enabled the panic_on_oops sysctl tunable by default, and therefore are not affected by this issue. However, as a preventive measure (for example, for administrators who have turned panic_on_oops off), this issue was fixed in kernel updates in Red Hat Enterprise Linux 4, 5, 6, and Red Hat Enterprise MRG. Because the fix was considered as a preventative measure, this CVE is not listed in the related advisories that provided the fix: RHSA-2011:0162, RHSA-2011:0263, RHSA-2011:0017, RHSA-2011:0498, RHSA-2011:0542, RHSA-2011:0330. The fix is documented in each of these advisories as a regular bug fix, for example as BZ#659568 in RHSA-2011:0162.", "threat_severity": "Moderate"}