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CVE-2018-12327

9.8 · CRITICAL

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…

Published Jun 20, 2018CWE-787EPSS 28.02%

Overview

CVE-2018-12327 is a critical-severity vulnerability. It was published on June 20, 2018 and has a CVSS 3.0 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/104517Refaccess.redhat.com/errata/RHSA-2018:3853Refaccess.redhat.com/errata/RHSA-2018:3854Refaccess.redhat.com/errata/RHSA-2019:2077GitHubgist.github.com/fakhrizulkifli/9b58ed8e0354e8deee50b0eebd1c011fRefsecurity.gentoo.org/glsa/201903-15Refsupport.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_usRefusn.ubuntu.com/4229-1/Refwww.exploit-db.com/exploits/44909/Refwww.securityfocus.com/bid/104517

How CyberStrike helps

Frequently asked questions

What is CVE-2018-12327?

CVE-2018-12327 is a critical-severity vulnerability. It was published on June 20, 2018 and has a CVSS 3.0 base score of 9.8 (CRITICAL).

How severe is CVE-2018-12327?

This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-12327?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-12327?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-12327 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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