Improper Input Validation Affecting ntp package, versions <1:4.2.8p10+dfsg-1
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-DEBIAN11-NTP-530878
- published 4 Jun 2018
- disclosed 4 Jun 2018
How to fix?
Upgrade Debian:11 ntp to version 1:4.2.8p10+dfsg-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ntp package and not the ntp package as distributed by Debian.
See How to fix? for Debian:11 relevant fixed versions and status.
An exploitable denial of service vulnerability exists in the origin timestamp check functionality of ntpd 4.2.8p9. A specially crafted unauthenticated network packet can be used to reset the expected origin timestamp for target peers. Legitimate replies from targeted peers will fail the origin timestamp check (TEST2) causing the reply to be dropped and creating a denial of service condition.
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us
- https://security-tracker.debian.org/tracker/CVE-2016-9042
- https://security.FreeBSD.org/advisories/FreeBSD-SA-17:03.ntp.asc
- http://www.securityfocus.com/bid/97046
- http://www.securitytracker.com/id/1038123
- http://www.securitytracker.com/id/1039427
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0260
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-9042
- https://kc.mcafee.com/corporate/index?page=content&id=SB10201
- http://seclists.org/fulldisclosure/2017/Nov/7
- http://seclists.org/fulldisclosure/2017/Sep/62
- https://support.f5.com/csp/article/K39041624
- http://www.securityfocus.com/archive/1/540403/100/0/threaded
- https://bto.bluecoat.com/security-advisory/sa147
- http://www.securityfocus.com/archive/1/archive/1/540464/100/0/threaded
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7KVLFA3J43QFIP4I7HE7KQ5FXSMJEKC6/
- http://packetstormsecurity.com/files/142101/FreeBSD-Security-Advisory-FreeBSD-SA-17-03.ntp.html
- http://www.securityfocus.com/archive/1/archive/1/540403/100/0/threaded
- http://packetstormsecurity.com/files/142284/Slackware-Security-Advisory-ntp-Updates.html
- https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11
- http://www.ubuntu.com/usn/USN-3349-1
- https://support.apple.com/kb/HT208144
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KVLFA3J43QFIP4I7HE7KQ5FXSMJEKC6/