XML External Entity (XXE) Injection Affecting ruby:2.5/rubygem-net-telnet package, versions <0:0.1.1-107.module+el8.4.0+10822+fe4fffb1


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.11% (45th percentile)

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  • Snyk IDSNYK-RHEL8-RUBY-4100135
  • published26 Jul 2021
  • disclosed5 Apr 2021

Introduced: 5 Apr 2021

CVE-2021-28965  (opens in a new tab)
CWE-611  (opens in a new tab)

How to fix?

Upgrade RHEL:8 ruby:2.5/rubygem-net-telnet to version 0:0.1.1-107.module+el8.4.0+10822+fe4fffb1 or higher.
This issue was patched in RHSA-2021:2587.

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.

The REXML gem before 3.2.5 in Ruby before 2.6.7, 2.7.x before 2.7.3, and 3.x before 3.0.1 does not properly address XML round-trip issues. An incorrect document can be produced after parsing and serializing.

CVSS Scores

version 3.1