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{"acknowledgement": "This issue was discovered by Miroslav Lichvar (Red Hat).", "bugzilla": {"description": "ntp: bad authentication demobilizes ephemeral associations", "id": "1340852", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1340852"}, "csaw": false, "cvss": {"cvss_base_score": "2.6", "cvss_scoring_vector": "AV:N/AC:H/Au:N/C:N/I:N/A:P", "status": "draft"}, "details": ["ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (ephemeral-association demobilization) by sending a spoofed crypto-NAK packet with incorrect authentication data at a certain time."], "name": "CVE-2016-4953", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "ntp", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "ntp", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "ntp", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2016-06-02T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-4953\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-4953\nhttp://support.ntp.org/bin/view/Main/SecurityNotice#June_2016_ntp_4_2_8p8_NTP_Securi"], "statement": "This issue did not affect the versions of ntp as shipped with any Red Hat Enterprise Linux version as they already included a fix for this issue in the patch provided to fix the CVE-2015-7979 issue. The fix for this issue (developed by Red Hat) was different from the one provided by upstream, and thus ntp versions in RHEL are not affected by CVE-2016-4953.", "threat_severity": "Low"}

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