Home/CVE/The Puppet Communications Protocol (PCP) Broker incorrectly validates message header sizes. An attacker could use this t
CVE

CVE-2016-9686

The Puppet Communications Protocol (PCP) Broker incorrectly validates message header sizes. An attacker could use this t

The Puppet Communications Protocol (PCP) Broker incorrectly validates message header sizes. An attacker could use this to crash the PCP Broker, preventing commands from being sent to agents. This is resolved in Puppet Enterprise 2016.4.3 and 2016.5.2.

MEDIUM · CVSS 5.3 EPSS 0.00377
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

2
puppet enterprise>= 2016.4.0 and < 2016.4.3
puppet enterpriseall versions
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.0 · security@puppet.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Feb 2017 · 10:59 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://puppet.com/security/cve/cve-2016-9686Vendor Advisory
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