SB2017020926 - Input validation error in Puppet Enterprise
Published: February 9, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017020926
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2016-9686)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
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.
Remediation
Install update from vendor's website.