Package : puppet Version : 2.7.23-1~deb7u4 CVE ID : CVE-2017-2295 Debian Bug : 863212 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. For Debian 7 "Wheezy", these problems have been fixed in version 2.7.23-1~deb7u4, by enabling PSON serialization on clients and refusing non-PSON formats on the server. We recommend that you upgrade your puppet packages. Make sure you update all your clients before you update the server otherwise older clients won't be able to connect to the server. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS
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