The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service (disruption) by continually sending a packet with a zero-origin timestamp and source IP address of the other side of an interleaved association causing the victim ntpd to reset its association.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ntp | Ntp | 4.2.6 (including) | 4.2.8 (excluding) |
| Ntp | Ntp | 4.2.8 (including) | 4.2.8 (including) |
| Ntp | Ntp | 4.2.8-p1 (including) | 4.2.8-p1 (including) |
| Ntp | Ntp | 4.2.8-p1-beta1 (including) | 4.2.8-p1-beta1 (including) |
| Ntp | Ntp | 4.2.8-p1-beta2 (including) | 4.2.8-p1-beta2 (including) |
| Ntp | Ntp | 4.2.8-p1-beta3 (including) | 4.2.8-p1-beta3 (including) |
| Ntp | Ntp | 4.2.8-p1-beta4 (including) | 4.2.8-p1-beta4 (including) |
| Ntp | Ntp | 4.2.8-p1-beta5 (including) | 4.2.8-p1-beta5 (including) |
| Ntp | Ntp | 4.2.8-p1-rc1 (including) | 4.2.8-p1-rc1 (including) |
| Ntp | Ntp | 4.2.8-p1-rc2 (including) | 4.2.8-p1-rc2 (including) |
| Ntp | Ntp | 4.2.8-p10 (including) | 4.2.8-p10 (including) |
| Ntp | Ntp | 4.2.8-p2 (including) | 4.2.8-p2 (including) |
| Ntp | Ntp | 4.2.8-p2-rc1 (including) | 4.2.8-p2-rc1 (including) |
| Ntp | Ntp | 4.2.8-p2-rc2 (including) | 4.2.8-p2-rc2 (including) |
| Ntp | Ntp | 4.2.8-p2-rc3 (including) | 4.2.8-p2-rc3 (including) |
| Ntp | Ntp | 4.2.8-p3 (including) | 4.2.8-p3 (including) |
| Ntp | Ntp | 4.2.8-p3-rc1 (including) | 4.2.8-p3-rc1 (including) |
| Ntp | Ntp | 4.2.8-p3-rc2 (including) | 4.2.8-p3-rc2 (including) |
| Ntp | Ntp | 4.2.8-p3-rc3 (including) | 4.2.8-p3-rc3 (including) |
| Ntp | Ntp | 4.2.8-p4 (including) | 4.2.8-p4 (including) |
| Ntp | Ntp | 4.2.8-p5 (including) | 4.2.8-p5 (including) |
| Ntp | Ntp | 4.2.8-p6 (including) | 4.2.8-p6 (including) |
| Ntp | Ntp | 4.2.8-p7 (including) | 4.2.8-p7 (including) |
| Ntp | Ntp | 4.2.8-p8 (including) | 4.2.8-p8 (including) |
| Ntp | Ntp | 4.2.8-p9 (including) | 4.2.8-p9 (including) |
| Ntp | Ubuntu | artful | * |
| Ntp | Ubuntu | bionic | * |
| Ntp | Ubuntu | cosmic | * |
| Ntp | Ubuntu | devel | * |
| Ntp | Ubuntu | esm-apps/bionic | * |
| Ntp | Ubuntu | esm-infra-legacy/trusty | * |
| Ntp | Ubuntu | esm-infra/xenial | * |
| Ntp | Ubuntu | trusty | * |
| Ntp | Ubuntu | trusty/esm | * |
| Ntp | Ubuntu | upstream | * |
| Ntp | Ubuntu | xenial | * |
References
- http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html
- http://support.ntp.org/bin/view/Main/NtpBug3454
- http://www.securityfocus.com/archive/1/541824/100/0/threaded
- http://www.securityfocus.com/bid/103339
- https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc
- https://security.gentoo.org/glsa/201805-12
- https://security.netapp.com/advisory/ntap-20180626-0001/
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03962en_us
- https://usn.ubuntu.com/3707-1/
- https://usn.ubuntu.com/3707-2/
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://www.synology.com/support/security/Synology_SA_18_13
- http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html
- http://support.ntp.org/bin/view/Main/NtpBug3454
- http://www.securityfocus.com/archive/1/541824/100/0/threaded
- http://www.securityfocus.com/bid/103339
- https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc
- https://security.gentoo.org/glsa/201805-12
- https://security.netapp.com/advisory/ntap-20180626-0001/
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03962en_us
- https://usn.ubuntu.com/3707-1/
- https://usn.ubuntu.com/3707-2/
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://www.synology.com/support/security/Synology_SA_18_13