Hash#slice in lib/i18n/core_ext/hash.rb in the i18n gem before 0.8.0 for Ruby allows remote attackers to cause a denial of service (application crash) via a call in a situation where :some_key is present in keep_keys but not present in the hash.
https://lists.debian.org/debian-lts-announce/2018/11/msg00021.html
https://github.com/svenfuchs/i18n/releases/tag/v0.8.0
https://github.com/svenfuchs/i18n/pull/289
https://github.com/rubysec/ruby-advisory-db/pull/182/files
Source: Mitre, NVD
Published: 2018-11-06
Updated: 2018-12-13
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity: High
EPSS: 0.01383