CVE-2017-2295

Public on 2017-06-22
Modified on 2017-06-22
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.
Severity
Important
CVSS v3 Base Score
8.1
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 puppet3 2017-06-22 19:23 ALAS-2017-849

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv2 6.0 AV:N/AC:M/Au:S/C:P/I:P/A:P
NVD CVSSv3 8.2 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N