MitreCVE-2016-4956CVE-2016-4956
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
AI Score
Confidence
High
EPSS
Percentile
89.8%
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.
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| ntp | ntp | * | cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:* |
| ntp | ntp | 4.2.8 | cpe:2.3:a:ntp:ntp:4.2.8:-:*:*:*:*:*:* |
| ntp | ntp | 4.2.8 | cpe:2.3:a:ntp:ntp:4.2.8:p1:*:*:*:*:*:* |
| ntp | ntp | 4.2.8 | cpe:2.3:a:ntp:ntp:4.2.8:p1-beta1:*:*:*:*:*:* |
| ntp | ntp | 4.2.8 | cpe:2.3:a:ntp:ntp:4.2.8:p1-beta2:*:*:*:*:*:* |
| ntp | ntp | 4.2.8 | cpe:2.3:a:ntp:ntp:4.2.8:p1-beta3:*:*:*:*:*:* |
| ntp | ntp | 4.2.8 | cpe:2.3:a:ntp:ntp:4.2.8:p1-beta4:*:*:*:*:*:* |
| ntp | ntp | 4.2.8 | cpe:2.3:a:ntp:ntp:4.2.8:p1-beta5:*:*:*:*:*:* |
| ntp | ntp | 4.2.8 | cpe:2.3:a:ntp:ntp:4.2.8:p1-rc1:*:*:*:*:*:* |
| ntp | ntp | 4.2.8 | cpe:2.3:a:ntp:ntp:4.2.8:p1-rc2:*:*:*:*:*:* |
References
bugs.ntp.org/3042
lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html
lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html
lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html
lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html
lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html
lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html
lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
packetstormsecurity.com/files/137321/Slackware-Security-Advisory-ntp-Updates.html
support.ntp.org/bin/view/Main/NtpBug3042
support.ntp.org/bin/view/Main/SecurityNotice
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160603-ntpd
www.kb.cert.org/vuls/id/321640
www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
www.securityfocus.com/archive/1/538599/100/0/threaded
www.securityfocus.com/archive/1/538600/100/0/threaded
www.securityfocus.com/archive/1/540683/100/0/threaded
www.securityfocus.com/archive/1/archive/1/538599/100/0/threaded
www.securityfocus.com/archive/1/archive/1/538600/100/0/threaded
www.securityfocus.com/archive/1/archive/1/540683/100/0/threaded
www.securityfocus.com/bid/91009
www.securitytracker.com/id/1036037
www.ubuntu.com/usn/USN-3096-1
cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf
h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03757en_us
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3EYJQHJZ2KTVQ7ICEFHXTLZ36MRASWX/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ORAMN3Q7TVJ54MBYF75XCJOE3DP7LYHT/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNWGCQLW2VY72NIUYMJOCAKJKTXHDUK2/
security.FreeBSD.org/advisories/FreeBSD-SA-16:24.ntp.asc
security.gentoo.org/glsa/201607-15
us-cert.cisa.gov/ics/advisories/icsa-21-159-11
www.kb.cert.org/vuls/id/321640
Social References
More
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
AI Score
Confidence
High
EPSS
Percentile
89.8%