CVE-2021-41817
Public on 2022-01-01
Modified on 2024-01-24
Description
A flaw was found in ruby, where the date object was found to be vulnerable to a regular expression denial of service (ReDoS) during the parsing of dates. This flaw allows an attacker to hang a ruby application by providing a specially crafted date string. The highest threat to this vulnerability is system availability.
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | ruby | No Fix Planned | ||
| Amazon Linux 2 - Core | ruby | 2023-11-09 | ALAS2-2023-2345 | Fixed |
| Amazon Linux 2 - Ruby2.6 Extra | ruby | 2023-08-07 | ALAS2RUBY2.6-2023-002 | Fixed |
| Amazon Linux 2 - Ruby3.0 Extra | ruby | 2023-08-21 | ALAS2RUBY3.0-2023-003 | Fixed |
| Amazon Linux 2023 | ruby3.2 | Not Affected |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVD | CVSSv2 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| NVD | CVSSv3 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |