Medium severity · published Feb 8, 2017
CVE-2016-9686
The Puppet Communications Protocol (PCP) Broker incorrectly validates message header sizes
5.3
CVSS
1.3%
EPSS
No
On KEV
Description
The Puppet Communications Protocol (PCP) Broker incorrectly validates message header sizes. An attacker could use this to crash the PCP Broker, preventing commands from being sent to agents. This is resolved in Puppet Enterprise 2016.4.3 and 2016.5.2.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 70% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PE
Puppet Enterprise · Puppet
2016.4.0 before 2016.4.3; 2016.5.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-9686
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-9686
Vendor Advisory
https://puppet.com/security/cve/cve-2016-9686
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