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{"acknowledgement": "Red Hat would like to thank Tavis Ormandy for reporting this issue.", "affected_release": [{"advisory": "RHSA-2011:0330", "cpe": "cpe:/a:redhat:enterprise_mrg:1::el5", "package": "kernel-rt-0:2.6.33.7-rt29.55.el5rt", "product_name": "MRG for RHEL-5", "release_date": "2011-03-10T00:00:00Z"}, {"advisory": "RHSA-2011:0429", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "kernel-0:2.6.18-238.9.1.el5", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2011-04-12T00:00:00Z"}, {"advisory": "RHSA-2011:0421", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "kernel-0:2.6.32-71.24.1.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2011-04-08T00:00:00Z"}], "bugzilla": {"description": "kernel: install_special_mapping skips security_file_mmap check", "id": "662189", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=662189"}, "csaw": false, "cvss": {"cvss_base_score": "2.1", "cvss_scoring_vector": "AV:L/AC:L/Au:N/C:N/I:P/A:N", "status": "verified"}, "details": ["The install_special_mapping function in mm/mmap.c in the Linux kernel before 2.6.37-rc6 does not make an expected security_file_mmap function call, which allows local users to bypass intended mmap_min_addr restrictions and possibly conduct NULL pointer dereference attacks via a crafted assembly-language application."], "name": "CVE-2010-4346", "public_date": "2010-12-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2010-4346\nhttps://nvd.nist.gov/vuln/detail/CVE-2010-4346"], "statement": "The Linux kernel as shipped with Red Hat Enterprise Linux 4 is not vulnerable because it checks for mmap_min_addr even in special cases.\nThe Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG have mmap_min_addr sysctl tunable set to 4096, and therefore are not affected by this issue. However, as a preventive measure (for example, for administrators who have increased mmap_min_addr), we have addressed this in Red Hat Enterprise Linux 5, 6 and MRG via https://rhn.redhat.com/errata/RHSA-2011-0429.html, https://rhn.redhat.com/errata/RHSA-2011-0421.html, and https://rhn.redhat.com/errata/RHSA-2011-0330.html.", "threat_severity": "Low"}