CVE-2018-7184 Affecting ntp package, versions <1:4.2.8p10+dfsg-5ubuntu7.1
Threat Intelligence
Exploit maturity not defined.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1804-NTP-372748
- published6 Mar 2018
- disclosed6 Mar 2018
Introduced: 6 Mar 2018
CVE-2018-7184 (opens in a new tab)How to fix?
Upgrade Ubuntu:18.04 ntp to version 1:4.2.8p10+dfsg-5ubuntu7.1 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 Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-7184
- http://www.securityfocus.com/archive/1/541824/100/0/threaded
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us
- http://support.ntp.org/bin/view/Main/NtpBug3453
- https://www.synology.com/support/security/Synology_SA_18_13
- https://security-tracker.debian.org/tracker/CVE-2018-7184
- https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc
- https://security.gentoo.org/glsa/201805-12
- http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html
- https://security.netapp.com/advisory/ntap-20180626-0001/
- http://www.securityfocus.com/bid/103192
- https://usn.ubuntu.com/3707-1/