Versions of Puppet prior to 4.10.1 will deserialize data off the wire (from the agent to the server, in this case) with a attacker-specified format. This could be used to force YAML deserialization in an unsafe manner, which would lead to remote code execution. This change constrains the format of data on the wire to PSON or safely decoded YAML.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-1012-1 puppet security update
Debian DSA Debian DSA DSA-3862-1 puppet security update
EUVD EUVD EUVD-2017-11478 Versions of Puppet prior to 4.10.1 will deserialize data off the wire (from the agent to the server, in this case) with a attacker-specified format. This could be used to force YAML deserialization in an unsafe manner, which would lead to remote code execution. This change constrains the format of data on the wire to PSON or safely decoded YAML.
Ubuntu USN Ubuntu USN USN-3308-1 Puppet vulnerabilities
Ubuntu USN Ubuntu USN USN-4804-1 Puppet vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sat, 12 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.0196}

epss

{'score': 0.02026}


cve-icon MITRE

Status: PUBLISHED

Assigner: puppet

Published:

Updated: 2024-09-16T20:43:40.186Z

Reserved: 2016-12-01T00:00:00

Link: CVE-2017-2295

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2017-07-05T15:29:00.207

Modified: 2025-04-20T01:37:25.860

Link: CVE-2017-2295

cve-icon Redhat

Severity : Important

Publid Date: 2017-05-11T00:00:00Z

Links: CVE-2017-2295 - Bugzilla

cve-icon OpenCVE Enrichment

No data.