CVE-2016-7431
medium
CVSS v3
5.3
CVSS v4 NEW
—
VIR risk
5.3
Description
NTP before 4.2.8p9 allows remote attackers to bypass the origin timestamp protection mechanism via an origin timestamp of zero. NOTE: this vulnerability exists because of a CVE-2015-8138 regression.
Predictions
Exploit likelihood
63%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| arch | fixed | 4.2.8.p9-1 | |
| debian | bullseye | fixed | 1:4.2.8p9+dfsg-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| ntp | ntp | 4.2.8 | |
References
- https://security.archlinux.org/ASA-201611-28
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00153.html
- http://nwtime.org/ntp428p9_release/
- http://packetstormsecurity.com/files/140240/FreeBSD-Security-Advisory-FreeBSD-SA-16.39.ntp.html
- http://support.ntp.org/bin/view/Main/NtpBug3102
- http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20171129-01-ntpd-en
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.securityfocus.com/archive/1/539955/100/0/threaded
- http://www.securityfocus.com/archive/1/540254/100/0/threaded
- http://www.securityfocus.com/archive/1/archive/1/539955/100/0/threaded
- http://www.securityfocus.com/archive/1/archive/1/540254/100/0/threaded
- http://www.securityfocus.com/bid/94454
- http://www.securitytracker.com/id/1037354
- http://www.ubuntu.com/usn/USN-3349-1
- https://bto.bluecoat.com/security-advisory/sa139
- https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en&docId=emr_na-hpesbhf03883en_us
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en&docId=emr_na-hpesbhf03899en_us
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03883en_us
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03899en_us
- https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11
- https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2017-223/
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.