CVE-2018-7183
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
02 Description
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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 10.21% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 95.4% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-03-08 20:00Z8 YR AGO
- Last updated
- 2024-08-05 06:24Z2 YR AGO
- Reserved
- 2018-02-16
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 5f71b9194813c6848d0bbb8ead189bf981651f8b839496461e8dd7f1f08455f6
05 Affected products
06 References
- security.gentoo.orgGLSA-201805-12https://security.gentoo.org/glsa/201805-12
- security.freebsd.orgFreeBSD-SA-18:02https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc
- usn.ubuntu.comUSN-3707-2https://usn.ubuntu.com/3707-2/
- usn.ubuntu.comUSN-3707-1https://usn.ubuntu.com/3707-1/
- www.securityfocus.com103351http://www.securityfocus.com/bid/103351
- www.oracle.comhttps://www.oracle.com//security-alerts/cpujul2021.html
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20180626-0001/
- support.ntp.orghttp://support.ntp.org/bin/view/Main/SecurityNotice#February_2018_ntp_4_2_8p11_NTP_S
- www.synology.comhttps://www.synology.com/support/security/Synology_SA_18_13
- support.ntp.orghttp://support.ntp.org/bin/view/Main/NtpBug3414
- support.hpe.comhttps://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us
07 Fixed in
Arch Linux
- ntp Fixed in 4.2.8.p11-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 11
- ntp Fixed in 1:4.2.8p11+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- ntp Fixed in 1:4.2.6.p5+dfsg-3ubuntu2.14.04.13
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- ntp Fixed in 1:4.2.8p4+dfsg-3ubuntu5.9
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- ntp Fixed in 1:4.2.8p10+dfsg-5ubuntu7.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.