CVE-2021-41817

Advisory lineage Upstream: 0 Downstream: 27
Modified
Published: 01 Jan 2022, 00:00
Last modified:04 Aug 2024, 03:22

Vulnerability Summary

Overall Risk (default)
medium
40/100
CVSS Score
7.5 HIGH
v3.1 (nvd)
EPSS Score
0.5% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

01 Jan 2022, 00:00
Published
Vulnerability first disclosed
04 Aug 2024, 03:22
Last Modified
Vulnerability information updated

Description

Date.parse in the date gem through 3.2.0 for Ruby allows ReDoS (regular expression Denial of Service) via a long string. The fixed versions are 3.2.1, 3.1.2, 3.0.2, and 2.0.1.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 0.50%• Percentile: 66%

Techniques & Countermeasures

  • CWE-1333•Inefficient Regular Expression Complexity

    The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.

Affected Systems

  • debian•debian_linux

    9.0 | 10.0 | 11.0

  • fedoraproject•fedora

    34 | 35

  • opensuse•factory

    na

  • opensuse•leap

    15.2

  • redhat•enterprise_linux

    7.0 | 8.0

  • redhat•software_collections

    na

  • ruby-lang•date

    < 2.0.1 | ≥ 3.0.0, < 3.0.2 | ≥ 3.1.0, < 3.1.2 | 3.2.0

  • ruby-lang•ruby

    ≥ 2.6.0, < 2.6.9 | ≥ 2.7.0, < 2.7.5 | ≥ 3.0.0, < 3.0.3

  • suse•linux_enterprise

    12.0 | 15.0

References (5)