Resource Exhaustion Affecting ruby:2.5/rubygem-net-telnet package, versions <0:0.1.1-110.module+el8.6.0+15956+aa803fc1


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.74% (82nd percentile)

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  • Snyk IDSNYK-RHEL8-RUBY-4342582
  • published20 Nov 2021
  • disclosed15 Nov 2021

Introduced: 15 Nov 2021

CVE-2021-41817  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade RHEL:8 ruby:2.5/rubygem-net-telnet to version 0:0.1.1-110.module+el8.6.0+15956+aa803fc1 or higher.
This issue was patched in RHSA-2022:5779.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby:2.5/rubygem-net-telnet package and not the ruby:2.5/rubygem-net-telnet package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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 Scores

version 3.1