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OVAL

RHSA-2017:0252-01 -- Redhat ntp

ID: oval:org.secpod.oval:def:501975Date: (C)2017-02-08   (M)2024-01-29
Class: PATCHFamily: unix




The Network Time Protocol is used to synchronize a computer"s time with another referenced time source. These packages include the ntpd service which continuously adjusts system time and utilities used to query and configure the ntpd service. Security Fix: * It was found that when ntp is configured with rate limiting for all associations the limits are also applied to responses received from its configured sources. A remote attacker who knows the sources can cause a denial of service by preventing ntpd from accepting valid responses from its sources. * A flaw was found in the control mode functionality of ntpd. A remote attacker could send a crafted control mode packet which could lead to information disclosure or result in DDoS amplification attacks. * A flaw was found in the way ntpd implemented the trap service. A remote attacker could send a specially crafted packet to cause a null pointer dereference that will crash ntpd, resulting in a denial of service. * A flaw was found in the way ntpd running on a host with multiple network interfaces handled certain server responses. A remote attacker could use this flaw which would cause ntpd to not synchronize with the source. * A flaw was found in the way ntpd calculated the root delay. A remote attacker could send a specially-crafted spoofed packet to cause denial of service or in some special cases even crash

Platform:
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 6
Product:
ntp
Reference:
RHSA-2017:0252-01
CVE-2016-7426
CVE-2016-7429
CVE-2016-7433
CVE-2016-9310
CVE-2016-9311
CVE    5
CVE-2016-7433
CVE-2016-7429
CVE-2016-7426
CVE-2016-9311
...
CPE    595
cpe:/a:ntp:ntp:4.2.5:p239_rc1
cpe:/a:ntp:ntp:4.2.5:p247_rc1
cpe:/a:ntp:ntp:4.2.7:p159
cpe:/a:ntp:ntp:4.2.7:p157
...

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