CVE-2016-4956
MEDIUMNTP 4.x < 4.2.8p8 - Denial of Service via Spoofed Broadcast Packet
Title source: llmDescription
ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (interleaved-mode transition and time change) via a spoofed broadcast packet. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-1548.
References (33)
Core 33
Core References
Mailing List, Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-3096-1
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNWGCQLW2VY72NIUYMJOCAKJKTXHDUK2/
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/91009
Mailing List, Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html
Third Party Advisory vendor-advisory
x_refsource_freebsd
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:24.ntp.asc
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ORAMN3Q7TVJ54MBYF75XCJOE3DP7LYHT/
Third Party Advisory x_refsource_confirm
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03757en_us
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1036037
Mailing List, Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html
Third Party Advisory x_refsource_confirm
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
Vendor Advisory x_refsource_confirm
http://support.ntp.org/bin/view/Main/NtpBug3042
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
Issue Tracking, Vendor Advisory x_refsource_confirm
http://bugs.ntp.org/3042
Third Party Advisory, US Government Resource third-party-advisory
x_refsource_cert-vn
http://www.kb.cert.org/vuls/id/321640
Release Notes, Vendor Advisory x_refsource_confirm
http://support.ntp.org/bin/view/Main/SecurityNotice
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3EYJQHJZ2KTVQ7ICEFHXTLZ36MRASWX/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201607-15
Exploit, Third Party Advisory x_refsource_misc
http://packetstormsecurity.com/files/137321/Slackware-Security-Advisory-ntp-Updates.html
Various Sources vendor-advisory
x_refsource_cisco
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160603-ntpd
Third Party Advisory, VDB Entry mailing-list
x_refsource_bugtraq
http://www.securityfocus.com/archive/1/540683/100/0/threaded
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html
Third Party Advisory, VDB Entry mailing-list
x_refsource_bugtraq
http://www.securityfocus.com/archive/1/538599/100/0/threaded
Third Party Advisory, VDB Entry mailing-list
x_refsource_bugtraq
http://www.securityfocus.com/archive/1/archive/1/540683/100/0/threaded
Third Party Advisory, VDB Entry mailing-list
x_refsource_bugtraq
http://www.securityfocus.com/archive/1/538600/100/0/threaded
Third Party Advisory, US Government Resource third-party-advisory
x_refsource_cert-vn
https://www.kb.cert.org/vuls/id/321640
Third Party Advisory, VDB Entry mailing-list
x_refsource_bugtraq
http://www.securityfocus.com/archive/1/archive/1/538599/100/0/threaded
Third Party Advisory, VDB Entry mailing-list
x_refsource_bugtraq
http://www.securityfocus.com/archive/1/archive/1/538600/100/0/threaded
Third Party Advisory x_refsource_confirm
https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf
Third Party Advisory, US Government Resource x_refsource_misc
https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11
Scores
CVSS v3
5.3
EPSS
0.0140
EPSS Percentile
80.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Details
Status
published
Products (13)
novell/suse_manager
2.1
ntp/ntp
4.2.8 (21 CPE variants)
ntp/ntp
4.2.0 - 4.2.8
opensuse/leap
42.1
opensuse/opensuse
13.2
oracle/solaris
10
oracle/solaris
11.3
siemens/simatic_net_cp_443-1_opc_ua_firmware
suse/linux_enterprise_desktop
12 sp1
suse/linux_enterprise_server
11 sp2 (3 CPE variants)
... and 3 more
Published
Jul 05, 2016
Tracked Since
Feb 18, 2026