Detections
Analytics
Scientific Linux Security Update : ntp on SL6.x, SL7.x i386/x86_64 (20170206)
medium Nessus Plugin ID 97039
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Synopsis
The remote Scientific Linux host is missing one or more security updates.Description
Security Fix(es) :- 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.
(CVE-2016-7426)
- 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. (CVE-2016-9310)
- 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.
(CVE-2016-9311)
- 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.
(CVE-2016-7429)
- 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. (CVE-2016-7433)
Solution
Update the affected packages.See Also
Plugin Details
Severity: Medium
ID: 97039
File Name: sl_20170206_ntp_on_SL6_x.nasl
Version: 3.9
Type: local
Agent: unix
Published: 2/7/2017
Updated: 1/1/2026
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 4.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P
CVSS Score Source: CVE-2016-9310
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:fermilab:scientific_linux:ntp-perl, p-cpe:/a:fermilab:scientific_linux:ntp-doc, p-cpe:/a:fermilab:scientific_linux:ntpdate, p-cpe:/a:fermilab:scientific_linux:ntp-debuginfo, p-cpe:/a:fermilab:scientific_linux:ntp, x-cpe:/o:fermilab:scientific_linux, p-cpe:/a:fermilab:scientific_linux:sntp
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 2/6/2017
Vulnerability Publication Date: 1/13/2017
Reference Information
CVE: CVE-2016-7426, CVE-2016-7429, CVE-2016-7433, CVE-2016-9310, CVE-2016-9311