CVE-2018-7183: Buffer Overflow
First published: Thu Mar 08 2018(Updated: )
Buffer overflow in the decodearr function in ntpq in ntp 4.2.8p6 through 4.2.8p10 allows remote attackers to execute arbitrary code by leveraging an ntpq query and sending a response with a crafted array.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| NTP ntp | =4.2.8-p10 | |
| NTP ntp | =4.2.8-p6 | |
| NTP ntp | =4.2.8-p7 | |
| NTP ntp | =4.2.8-p8 | |
| NTP ntp | =4.2.8-p9 | |
| FreeBSD FreeBSD | =10.3 | |
| FreeBSD FreeBSD | =10.4 | |
| FreeBSD FreeBSD | =11.1 | |
| Canonical Ubuntu Linux | =12.04 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =17.10 | |
| Canonical Ubuntu Linux | =18.04 | |
| Netapp Element Software | ||
| debian/ntp | 1:4.2.8p15+dfsg-1 | |
| debian/ntpsec | 1.2.0+dfsg1-4 1.2.2+dfsg1-1+deb12u1 1.2.3+dfsg1-3 |
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Reference Links
- http://support.ntp.org/bin/view/Main/NtpBug3414
- http://support.ntp.org/bin/view/Main/SecurityNotice#February_2018_ntp_4_2_8p11_NTP_S
- http://www.securityfocus.com/bid/103351
- 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://usn.ubuntu.com/3707-2/
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.synology.com/support/security/Synology_SA_18_13
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us
- https://launchpad.net/bugs/cve/CVE-2018-7183
- http://www.kb.cert.org/vuls/id/961909
- https://security-tracker.debian.org/tracker/CVE-2018-7183
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7183
- https://nvd.nist.gov/vuln/detail/CVE-2018-7183
- https://ubuntu.com/security/CVE-2018-7183
Frequently Asked Questions
What is CVE-2018-7183?
CVE-2018-7183 is a buffer overflow vulnerability in the decodearr function in ntpq in ntp 4.2.8p6 through 4.2.8p10.
How does CVE-2018-7183 impact my system?
CVE-2018-7183 allows remote attackers to execute arbitrary code by leveraging an ntpq query and sending a response with a crafted array.
What is the severity of CVE-2018-7183?
CVE-2018-7183 has a severity rating of 9.8 (Critical).
Which software versions are affected by CVE-2018-7183?
Ntp 4.2.8p6 through 4.2.8p10, Freebsd 10.3 through 10.4, Freebsd 11.1, and various versions of Ubuntu Linux and Netapp Element Software are affected by CVE-2018-7183.
How can I fix CVE-2018-7183?
To fix CVE-2018-7183, update to at least ntp 4.2.8p12+dfsg-4, ntpsec 1.2.2+dfsg1-2, or the appropriate patched version based on your software distribution.
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