SUSE SLES11 Security Update : puppet (SUSE-SU-2018:0600-1)
Medium Nessus Plugin ID 107139
SynopsisThe remote SUSE host is missing one or more security updates.
DescriptionThis update for puppet fixes the following issues :
- CVE-2017-2295: Fixed a security vulnerability where an attacker could force YAML deserialization in an unsafe manner, which would lead to remote code execution. In default, this update would break a backwards compatibility with Puppet agents older than 3.2.2 as the SLE11 master doesn't support other fact formats than pson in default anymore. In order to allow users to continue using their SLE11 agents a patch was added that enables sending PSON from agents. For non-SUSE clients older that 3.2.2 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), (bsc#1077767)
Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionTo install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :
SUSE Linux Enterprise Server 11-SP4:zypper in -t patch slessp4-puppet-13498=1
To bring your system up-to-date, use 'zypper patch'.