CVE-2018-12327

Name: CVE-2018-12327
Creator: NVD / NIST
Published: 2018-06-20T14:29:00.227+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 29.04%

Last modified Jun 17, 2026

CVE-2018-12327 is a vulnerability of currently unknown severity. Stack-based buffer overflow in ntpq and ntpdc of NTP version 4.2.8p11 allows an attacker to achieve code execution or escalate to higher privileges via a long string as the argument for an IPv4 or IPv6 command-line parameter. NOTE: It is unclear whether there are any common situations in which ntpq or ntpdc is used with a command line from an untrusted source.. EPSS estimates a 29.04% chance of exploitation in the next 30 days.

Description

Stack-based buffer overflow in ntpq and ntpdc of NTP version 4.2.8p11 allows an attacker to achieve code execution or escalate to higher privileges via a long string as the argument for an IPv4 or IPv6 command-line parameter. NOTE: It is unclear whether there are any common situations in which ntpq or ntpdc is used with a command line from an untrusted source.

Metrics

EPSS Probability

29.04%

97.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions	Update
Ntp	Ntp	4.2.8	P11

References

http://www.securityfocus.com/bid/104517Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:3853
https://access.redhat.com/errata/RHSA-2018:3854
https://access.redhat.com/errata/RHSA-2019:2077
https://gist.github.com/fakhrizulkifli/9b58ed8e0354e8deee50b0eebd1c011fExploit, Third Party Advisory
https://security.gentoo.org/glsa/201903-15
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us
https://usn.ubuntu.com/4229-1/
https://www.exploit-db.com/exploits/44909/Exploit, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/104517Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:3853
https://access.redhat.com/errata/RHSA-2018:3854
https://access.redhat.com/errata/RHSA-2019:2077
https://gist.github.com/fakhrizulkifli/9b58ed8e0354e8deee50b0eebd1c011fExploit, Third Party Advisory
https://security.gentoo.org/glsa/201903-15
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us
https://usn.ubuntu.com/4229-1/
https://www.exploit-db.com/exploits/44909/Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Jun 20, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-12327?

How severe is CVE-2018-12327?

Severity scoring for CVE-2018-12327 is pending analysis. The EPSS model estimates a 29.04% probability of exploitation in the next 30 days.

How do I fix CVE-2018-12327?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-12327?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST