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{"affected_release": [{"advisory": "RHSA-2016:2124", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "kernel-0:2.6.18-416.el5", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2016-10-28T00:00:00Z"}, {"advisory": "RHSA-2016:2766", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "kernel-0:2.6.32-642.11.1.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2016-11-15T00:00:00Z"}, {"advisory": "RHSA-2017:2760", "cpe": "cpe:/o:redhat:rhel_eus:6.7", "package": "kernel-0:2.6.32-573.47.1.el6", "product_name": "Red Hat Enterprise Linux 6.7 Extended Update Support", "release_date": "2017-09-19T00:00:00Z"}], "bugzilla": {"description": "kernel: Stack overflow via ecryptfs and /proc/$pid/environ", "id": "1344721", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1344721"}, "csaw": false, "cvss": {"cvss_base_score": "6.9", "cvss_scoring_vector": "AV:L/AC:M/Au:N/C:C/I:C/A:C", "status": "verified"}, "cvss3": {"cvss3_base_score": "8.1", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-121", "details": ["The ecryptfs_privileged_open function in fs/ecryptfs/kthread.c in the Linux kernel before 4.6.3 allows local users to gain privileges or cause a denial of service (stack memory consumption) via vectors involving crafted mmap calls for /proc pathnames, leading to recursive pagefault handling.", "It was found that stacking a file system over procfs in the Linux kernel could lead to a kernel stack overflow due to deep nesting, as demonstrated by mounting ecryptfs over procfs and creating a recursion by mapping /proc/environ. An unprivileged, local user could potentially use this flaw to escalate their privileges on the system."], "name": "CVE-2016-1583", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Affected", "package_name": "realtime-kernel", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2016-06-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-1583\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-1583"], "statement": "This issue affects the Linux kernels as shipped with Red Hat Enterprise Linux 5 and 6 and may addressed in a future update.", "threat_severity": "Important"}