CVE-2017-2295

Description

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.

Category

8.2
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.96% Top 20%
Vendor Advisory debian.org Vendor Advisory puppet.com
Affected: Puppet Puppet server
Published at:
Updated at:

References

Link Tags
https://puppet.com/security/cve/cve-2017-2295 vendor advisory
http://www.debian.org/security/2017/dsa-3862 third party advisory vendor advisory
http://www.securityfocus.com/bid/98582 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-2295?
CVE-2017-2295 has been scored as a high severity vulnerability.
How to fix CVE-2017-2295?
To fix CVE-2017-2295, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-2295 being actively exploited in the wild?
It is possible that CVE-2017-2295 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-2295?
CVE-2017-2295 affects Puppet Puppet server.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.