Reliance on Cookies without Validation and Integrity Checking 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
0.75% (82nd percentile)

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  • Snyk IDSNYK-RHEL8-RUBY-4342583
  • published26 Nov 2021
  • disclosed24 Nov 2021

Introduced: 24 Nov 2021

CVE-2021-41819  (opens in a new tab)
CWE-565  (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.

CGI::Cookie.parse in Ruby through 2.6.8 mishandles security prefixes in cookie names. This also affects the CGI gem through 0.3.0 for Ruby.

CVSS Scores

version 3.1