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Deserialization of Untrusted Data Affecting ruby2.3 package, versions <2.3.3-1+deb9u2

0.0
critical

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 13.51% (96th percentile)
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NVD
9.8 critical
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Red Hat
5.6 medium

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  • Snyk ID SNYK-DEBIAN9-RUBY23-308578
  • published 11 Oct 2017
  • disclosed 11 Oct 2017
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Introduced: 11 Oct 2017

CVE-2017-0903 Open this link in a new tab
CWE-502 Open this link in a new tab

How to fix?

Upgrade Debian:9 ruby2.3 to version 2.3.3-1+deb9u2 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 Debian. See How to fix? for Debian:9 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.

References