Out-of-bounds Read Affecting ntpsec package, versions <1.0.0+dfsg1-5
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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-ECHOLATEST-NTPSEC-18496105
- published1 Aug 2026
- disclosed6 Mar 2018
Introduced: 6 Mar 2018
CVE-2018-7182 (opens in a new tab)How to fix?
Upgrade Echo:latest ntpsec to version 1.0.0+dfsg1-5 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ntpsec package and not the ntpsec package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
The ctl_getitem method in ntpd in ntp-4.2.8p6 before 4.2.8p11 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted mode 6 packet with a ntpd instance from 4.2.8p6 through 4.2.8p10.
References
- https://advisory.echohq.com/cve/CVE-2018-7182
- http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html
- http://support.ntp.org/bin/view/Main/NtpBug3412
- http://www.securityfocus.com/archive/1/541824/100/0/threaded
- http://www.securityfocus.com/bid/103191
- 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&docId=emr_na-hpesbux03962en_us
- https://usn.ubuntu.com/3707-1/
- https://www.exploit-db.com/exploits/45846/
- https://www.synology.com/support/security/Synology_SA_18_13
- https://www.exploit-db.com/exploits/45846