AmazonALAS-2017-849Important: puppet3
6 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:P/I:P/A:P
8.2 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
0.002 Low
EPSS
Percentile
64.5%
Issue Overview:
Unsafe YAML deserialization:
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. This change constrains the format of data on the wire to PSON or safely decoded YAML. (CVE-2017-2295 )
Affected Packages:
puppet3
Issue Correction:
Run yum update puppet3 to update your system.
New Packages:
noarch:
puppet3-3.7.4-1.13.amzn1.noarch
puppet3-server-3.7.4-1.13.amzn1.noarch
src:
puppet3-3.7.4-1.13.amzn1.src
Additional References
Red Hat: CVE-2017-2295
Mitre: CVE-2017-2295
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Amazon Linux | 1 | noarch | puppet3 | < 3.7.4-1.13.amzn1 | puppet3-3.7.4-1.13.amzn1.noarch.rpm |
| Amazon Linux | 1 | noarch | puppet3-server | < 3.7.4-1.13.amzn1 | puppet3-server-3.7.4-1.13.amzn1.noarch.rpm |
Related
6 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:P/I:P/A:P
8.2 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
0.002 Low
EPSS
Percentile
64.5%