SUSE SLED12 Security Update : puppet (SUSE-SU-2017:2113-1)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote SUSE host is missing one or more security updates.

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)

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.

See also :

https://bugzilla.suse.com/1040151
https://www.suse.com/security/cve/CVE-2017-2295.html
http://www.nessus.org/u?8a225343

Solution :

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Module for Advanced Systems Management 12:zypper
in -t patch SUSE-SLE-Module-Adv-Systems-Management-12-2017-1310=1

SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP3-2017-1310=1

SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP2-2017-1310=1

To bring your system up-to-date, use 'zypper patch'.

Risk factor :

Medium / CVSS Base Score : 6.0
(CVSS2#AV:N/AC:M/Au:S/C:P/I:P/A:P)
CVSS Temporal Score : 5.0
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: SuSE Local Security Checks

Nessus Plugin ID: 102352 ()

Bugtraq ID:

CVE ID: CVE-2017-2295

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