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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
See what this means
CVSS v3 Base Score
5.3
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core ruby 2023-11-09 19:19 ALAS2-2023-2345
Amazon Linux 2 - Ruby2.6 Extra ruby 2023-08-07 05:23 ALAS2RUBY2.6-2023-002
Amazon Linux 2 - Ruby3.0 Extra ruby 2023-08-21 20:59 ALAS2RUBY3.0-2023-003

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

References

Red Hat: CVE-2021-41817 Mitre: CVE-2021-41817 FAQs regarding Amazon Linux ALAS/CVE Severity