CVE-2017-2295

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.

• CWE-502

• http://www.debian.org/security/2017/dsa-3862Third Party Advisory
• http://www.securityfocus.com/bid/98582Third Party Advisory, VDB Entry
• https://puppet.com/security/cve/cve-2017-2295Vendor Advisory
• http://www.debian.org/security/2017/dsa-3862Third Party Advisory
• http://www.securityfocus.com/bid/98582Third Party Advisory, VDB Entry
• https://puppet.com/security/cve/cve-2017-2295Vendor Advisory

Published

Jul 5, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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