SnakeYAML vulnerability 

Issue date: 21-09-2021
Affects versions: 14.6

Security Issue ID

SECURITY-236

 

Affected Product Version(s)

14.6.0 and previous releases.


Severity 

medium


Description

 

CVE-2017-18640

 

The Alias feature in SnakeYAML 1.18 allows entity expansion during a load operation, a related issue to CVE-2003-1564.

CWE-776 Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

CVSSv2:

  • Base Score: MEDIUM (5.0)
  • Vector: /AV:N/AC:L/Au:N/C:N/I:N/A

CVSSv3:

  • Base Score: HIGH (7.5)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Instructions

Customers using the 14.x major versions are recommended to upgrade to the latest version in that series.