CVE-2019-15845

Public on 2019-11-26
Modified on 2024-02-22
Description
A flaw was discovered in Ruby in the way certain functions handled strings containing NULL bytes. Specifically, the built-in methods File.fnmatch and its alias File.fnmatch? did not properly handle path patterns containing the NULL byte. A remote attacker could exploit this flaw to make a Ruby script access unexpected files and to bypass intended file system access restrictions.
Severity
Medium severity
Medium
CVSS v3 Base Score
6.5
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core ruby 2024-02-29 ALAS2-2024-2486 Fixed
Amazon Linux 2 - Ruby2.6 Extra ruby 2023-08-21 ALAS2RUBY2.6-2023-007 Fixed
Amazon Linux 1 ruby24 2020-08-26 ALAS-2020-1422 Fixed
Amazon Linux 2023 ruby3.2 Not Affected

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
NVD CVSSv2 6.4 AV:N/AC:L/Au:N/C:P/I:P/A:N
NVD CVSSv3 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N