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Deserialization of Untrusted Data Affecting ruby2.1 package, versions <2.1.5-2+deb8u4

Severity

 Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
15.85% (97th percentile)

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  • Snyk IDSNYK-DEBIAN8-RUBY21-280428
  • 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)

How to fix?

Upgrade Debian:8 ruby2.1 to version 2.1.5-2+deb8u4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby2.1 package and not the ruby2.1 package as distributed by Debian. See How to fix? for Debian:8 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.