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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...

HighCVSS 8.2 EPSS 2.8%
Published
Updated
Exploit status
No public exploit known

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.

Affected products

ProductAffected versionsFixed in
debian/puppet(Debian:11) < 4.8.2-5 4.8.2-5
puppet <= 4.10.0 No fix listed
debian linux = 8.0 No fix listed
puppet server = Puppet prior to 4.10.1 No fix listed

References