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{"acknowledgement": "This issue was discovered by Michael S. Tsirkin (Red Hat Engineering).", "bugzilla": {"description": "kernel: vhost fd leak in ioctl VHOST_SET_LOG_FD", "id": "1251839", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1251839"}, "csaw": false, "cvss": {"cvss_base_score": "1.5", "cvss_scoring_vector": "AV:L/AC:M/Au:S/C:N/I:N/A:P", "status": "draft"}, "cwe": "CWE-665", "details": ["The vhost_dev_ioctl function in drivers/vhost/vhost.c in the Linux kernel before 4.1.5 allows local users to cause a denial of service (memory consumption) via a VHOST_SET_LOG_FD ioctl call that triggers permanent file-descriptor allocation.", "A flaw was found in the way the Linux kernel's vhost driver treated userspace provided log file descriptor when processing the VHOST_SET_LOG_FD ioctl command. The file descriptor was never released and continued to consume kernel memory. A privileged local user with access to the /dev/vhost-net files could use this flaw to create a denial-of-service attack."], "name": "CVE-2015-6252", "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": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Will not fix", "package_name": "realtime-kernel", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2015-08-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-6252\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-6252"], "statement": "This issue does not affect the Linux kernels as shipped with Red Hat Enterprise Linux 5.\nThis issue has been rated as having Low impact, affects the Linux kernels as shipped with Red Hat Enterprise Linux 6, 7 and Red Hat Enterprise MRG 2 and is currently not planned to be addressed in a future updates.", "threat_severity": "Low"}