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{"acknowledgement": "Red Hat would like to thank Andy Lutomirski for reporting this issue.", "affected_release": [{"advisory": "RHSA-2014:0924", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "kernel-0:2.6.32-431.20.5.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2014-07-23T00:00:00Z"}, {"advisory": "RHSA-2014:0949", "cpe": "cpe:/o:redhat:rhel_mission_critical:6.2", "package": "kernel-0:2.6.32-220.53.1.el6", "product_name": "Red Hat Enterprise Linux 6.2 Advanced Update Support", "release_date": "2014-07-28T00:00:00Z"}, {"advisory": "RHSA-2014:0925", "cpe": "cpe:/o:redhat:rhel_eus:6.4", "package": "kernel-0:2.6.32-358.46.2.el6", "product_name": "Red Hat Enterprise Linux 6.4 Extended Update Support", "release_date": "2014-07-23T00:00:00Z"}, {"advisory": "RHSA-2014:0923", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-123.4.4.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2014-07-23T00:00:00Z"}, {"advisory": "RHSA-2014:0913", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-0:3.10.33-rt32.43.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2014-07-22T00:00:00Z"}], "bugzilla": {"description": "kernel: x86_64: ptrace: sysret to non-canonical address", "id": "1115927", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1115927"}, "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"}, "cwe": "CWE-642", "details": ["The Linux kernel before 3.15.4 on Intel processors does not properly restrict use of a non-canonical value for the saved RIP address in the case of a system call that does not use IRET, which allows local users to leverage a race condition and gain privileges, or cause a denial of service (double fault), via a crafted application that makes ptrace and fork system calls.", "It was found that the Linux kernel's ptrace subsystem allowed a traced process' instruction pointer to be set to a non-canonical memory address without forcing the non-sysret code path when returning to user space. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system.\nNote: The CVE-2014-4699 issue only affected systems using an Intel CPU."], "name": "CVE-2014-4699", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2014-07-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2014-4699\nhttps://nvd.nist.gov/vuln/detail/CVE-2014-4699"], "statement": "This issue does not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5.", "threat_severity": "Important"}