CVE-2017-18640

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

Summary:

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

Reference Links(if available):

  • https://bitbucket.org/asomov/snakeyaml/issues/377/allow-configuration-for-preventing-billion
  • https://mvnrepository.com/artifact/org.yaml/snakeyaml/1.25/usages
  • https://bitbucket.org/asomov/snakeyaml/wiki/Billion%20laughs%20attack
  • https://lists.fedoraproject.org/archives/list/[email protected]/message/CKN7VGIKTYBCAKYBRG55QHXAY5UDZ7HA/
  • https://lists.fedoraproject.org/archives/list/[email protected]/message/PTVJC54XGX26UJVVYCXZ7D25X3R5T2G6/
  • CVSS Score (if available)

    v2: / HIGHAV:N/AC:L/Au:N/C:N/I:N/A:P

    v3: / HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

    Links to Exploits(if available)