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Deserialization of Untrusted Data The advisory has been revoked - it doesn't affect any version of package ruby1.9.1  (opens in a new tab)

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EPSS
15.85% (97th percentile)

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  • Snyk IDSNYK-UBUNTU1404-RUBY191-662755
  • published11 Oct 2017
  • disclosed11 Oct 2017
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Introduced: 11 Oct 2017

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

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:14.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby1.9.1 package and not the ruby1.9.1 package as distributed by Ubuntu.

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.