CVE-2018-12327: Buffer Overflow
First published: Wed Jun 20 2018(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ubuntu/ntp | <1:4.2.8 | 1:4.2.8 |
| ubuntu/ntp | <1:4.2.6. | 1:4.2.6. |
| ubuntu/ntp | <4.2.8 | 4.2.8 |
| ubuntu/ntp | <1:4.2.8 | 1:4.2.8 |
| =4.2.8-p11 | ||
| NTP ntp | =4.2.8-p11 | |
| debian/ntp | <=1:4.2.8p12+dfsg-4<=1:4.2.8p15+dfsg-1 |
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Reference Links
- https://gist.github.com/fakhrizulkifli/9b58ed8e0354e8deee50b0eebd1c011f
- https://www.exploit-db.com/exploits/44909/
- http://www.securityfocus.com/bid/104517
- https://access.redhat.com/errata/RHSA-2018:3853
- https://access.redhat.com/errata/RHSA-2018:3854
- https://security.gentoo.org/glsa/201903-15
- https://access.redhat.com/errata/RHSA-2019:2077
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us
- https://usn.ubuntu.com/4229-1/
- https://launchpad.net/bugs/cve/CVE-2018-12327
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1593581
- https://access.redhat.com/security/updates/classification/
- https://access.redhat.com/support/policy/updates/errata/
- https://access.redhat.com/errata/RHSA-2020:1470
- https://bugzilla.redhat.com/show_bug.cgi?id=1593580
- https://security-tracker.debian.org/tracker/CVE-2018-12327
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12327
- https://ubuntu.com/security/notices/USN-4229-1
- https://ubuntu.com/security/notices/USN-4229-2
- https://nvd.nist.gov/vuln/detail/CVE-2018-12327
- https://ubuntu.com/security/CVE-2018-12327
Frequently Asked Questions
What is CVE-2018-12327?
CVE-2018-12327 is a stack-based buffer overflow vulnerability in ntpq and ntpdc of NTP version 4.2.8p11.
How severe is CVE-2018-12327?
CVE-2018-12327 has a severity rating of 9.8 out of 10, indicating it is critical.
Which software is affected by CVE-2018-12327?
The affected software includes NTP version 4.2.8p11 and some versions of the ntp package in Debian and Ubuntu.
How can an attacker exploit CVE-2018-12327?
An attacker can exploit CVE-2018-12327 by providing a long string as the argument for an IPv4 or IPv6 command-line parameter, which can lead to code execution or privilege escalation.
Where can I find more information about CVE-2018-12327?
You can find more information about CVE-2018-12327 on the MITRE CVE website, a GitHub gist, and the Ubuntu security notices.
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