<p>Upgrade <code>Amazon-Linux:2</code> <code>ruby-irb</code> to version 0:2.0.0.648-33.amzn2.0.1 or higher.<br>This issue was patched in <code>ALAS2-2018-983</code>.</p>

Arbitrary Code Injection Affecting ruby-irb package, versions <0:2.0.0.648-33.amzn2.0.1

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2.8% (91^st percentile)

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Snyk ID SNYK-AMZN2-RUBYIRB-1660943
published 27 Sep 2021
disclosed 20 Dec 2017

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Introduced: 20 Dec 2017

CVE-2017-17790 Open this link in a new tab CWE-74 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 ruby-irb to version 0:2.0.0.648-33.amzn2.0.1 or higher.
This issue was patched in ALAS2-2018-983.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-irb package and not the ruby-irb package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

The lazy_initialize function in lib/resolv.rb in Ruby through 2.4.3 uses Kernel#open, which might allow Command Injection attacks, as demonstrated by a Resolv::Hosts::new argument beginning with a '|' character, a different vulnerability than CVE-2017-17405. NOTE: situations with untrusted input may be highly unlikely.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Network
Attack Complexity (AC)

High
Privileges Required (PR)

None
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

High
Integrity (I)

High
Availability (A)

High