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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
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CVSS v3 Base Score
6.5
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core ruby 2024-02-29 10:03 ALAS2-2024-2486
Amazon Linux 2 - Ruby2.6 Extra ruby 2023-08-21 20:59 ALAS2RUBY2.6-2023-007
Amazon Linux 1 ruby24 2020-08-26 23:09 ALAS-2020-1422

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