A malicious authenticated peer can create arbitrarily-many ephemeral associations in order to win the clock selection algorithm in ntpd in NTP 4.2.8p4 and earlier and NTPsec 3e160db8dc248a0bcb053b56a80167dc742d2b74 and a5fb34b9cc89b92a8fef2f459004865c93bb7f92 and modify a victims clock.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ntp | Ntp | 4.2.8-p4 (including) | 4.2.8-p4 (including) |
| Ntp | Ubuntu | devel | * |
| Ntp | Ubuntu | esm-infra-legacy/trusty | * |
| Ntp | Ubuntu | esm-infra/xenial | * |
| Ntp | Ubuntu | precise | * |
| Ntp | Ubuntu | trusty | * |
| Ntp | Ubuntu | trusty/esm | * |
| Ntp | Ubuntu | upstream | * |
| Ntp | Ubuntu | vivid/stable-phone-overlay | * |
| Ntp | Ubuntu | wily | * |
| Ntp | Ubuntu | xenial | * |
References
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/88200
- http://www.securitytracker.com/id/1035705
- http://www.talosintelligence.com/reports/TALOS-2016-0083/
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc
- https://security.gentoo.org/glsa/201607-15
- https://security.netapp.com/advisory/ntap-20171004-0002/
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03962en_us
- https://www.synology.com/support/security/Synology_SA_18_13
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/88200
- http://www.securitytracker.com/id/1035705
- http://www.talosintelligence.com/reports/TALOS-2016-0083/
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc
- https://security.gentoo.org/glsa/201607-15
- https://security.netapp.com/advisory/ntap-20171004-0002/
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03962en_us
- https://www.synology.com/support/security/Synology_SA_18_13