File _patchinfo of Package patchinfo.5194
<patchinfo incident="5194">
<issue id="1040151" tracker="bnc">VUL-0: CVE-2017-2295 puppet: Unsafe YAML deserialization allowing for RCE</issue>
<issue id="2017-2295" tracker="cve" />
<category>security</category>
<rating>important</rating>
<packager>kstreitova</packager>
<description>This update for puppet fixes the following issues:
Security issue fixed:
- CVE-2017-2295: Possible code execution vulnerability where an attacker could force YAML
deserialization in an unsafe manner. In default, this update breaks a backwards compatibility
with Puppet agents older than 3.2.2 as the SLE12 master doesn't support other fact formats than
pson in default anymore.
In order to allow users to continue using their SLE12 master/SLE11 agents setup and fix
CVE-2017-2295 for the others, a new puppet master boolean option "dangerous_fact_formats" was
added. When it's set to true it enables using dangerous fact formats (e.g. YAML). When it's set
to false, only PSON fact format is accepted. (bsc#1040151)
</description>
<summary>Security update for puppet</summary>
</patchinfo>