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Deserialization of Untrusted Data Affecting ruby2.3 package, versions <2.3.1-2~16.04.6

Severity

 Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
13.51% (96th percentile)

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  • Snyk IDSNYK-UBUNTU1604-RUBY23-308579
  • published11 Oct 2017
  • disclosed11 Oct 2017
Report a new vulnerability Found a mistake?

Introduced: 11 Oct 2017

CVE-2017-0903  (opens in a new tab)
CWE-502  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 ruby2.3 to version 2.3.1-2~16.04.6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby2.3 package and not the ruby2.3 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution.