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CVE-2016-4954
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
Description
The process_packet function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (peer-variable modification) by sending spoofed packets from many source IP addresses in a certain scenario, as demonstrated by triggering an incorrect leap indication..
CVSSv2.0 Score
- Severity
- Medium
- Base Score
- 5/10
- Exploit Score
- 10/10
- Access Vector
- Network
- Access Complexity
- Low
- Authentication Required
- None
- Impact Score
- 2.9/10
- Confidentiality Impact
- None
- Availability Impact
- Partial
- Integrity Impact
- None
CVSSv3.1 Score
- Severity
- High
- Base Score
- 7.5/10
- Exploit Score
- 3.9/10
- Access Vector
- Network
- Access Complexity
- Low
- Privileges Required
- None
- Impact Score
- 3.6/10
- Confidentiality Impact
- None
- Availability Impact
- High
- Integrity Impact
- None
- Scope
- Unchanged
- User Interaction
- None
Products Affected
| CPE | Affected | Vulnerable | Excluding | Edit |
|---|---|---|---|---|
| cpe:2.3:a:ntp:ntp:4.2.8:p5:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p2:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p3:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p4:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p7:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p6:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p1:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p3-rc3:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p3-rc2:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p3-rc1:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p2-rc3:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p2-rc2:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p2-rc1:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p1-rc2:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p1-rc1:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p1-beta5:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p1-beta4:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p1-beta3:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p1-beta2:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:p1-beta1:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:4.2.8:-:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:* |
Yes
|
4.2.0 | 4.2.8 | |
| cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:* |
Yes
|
4.3.0 | 4.3.93 | |
| cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:o:oracle:solaris:10:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:o:suse:linux_enterprise_server:11:sp4:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:suse:openstack_cloud:5:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:suse:manager_proxy:2.1:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:ltss:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:suse:manager:2.1:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:o:suse:linux_enterprise_server:12:sp1:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:ltss:*:*:* |
Yes
|
- | - | |
| cpe:2.3:o:suse:linux_enterprise_desktop:12:sp1:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* |
Yes
|
- | - |
References
- http://www.kb.cert.org/vuls/id/321640
- http://bugs.ntp.org/3044
- http://support.ntp.org/bin/view/Main/NtpBug3044
- http://support.ntp.org/bin/view/Main/SecurityNotice
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf
- https://security.gentoo.org/glsa/201607-15
- http://www.securitytracker.com/id/1036037
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:24.ntp.asc
- https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11
- https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf
- http://www.securityfocus.com/archive/1/archive/1/538600/100/0/threaded
- http://www.securityfocus.com/archive/1/archive/1/538599/100/0/threaded
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
- http://www.ubuntu.com/usn/USN-3096-1
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
- http://www.securityfocus.com/archive/1/archive/1/540683/100/0/threaded
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html
- http://www.securityfocus.com/archive/1/538599/100/0/threaded
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160603-n
- http://www.securityfocus.com/archive/1/538600/100/0/threaded
- https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11
- http://www.securityfocus.com/archive/1/540683/100/0/threaded
- https://www.kb.cert.org/vuls/id/321640
- http://packetstormsecurity.com/files/137321/Slackware-Security-Advisory-ntp-Updates.html
- http://packetstormsecurity.com/files/137322/FreeBSD-Security-Advisory-FreeBSD-SA-16-24.n
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org