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CVE Vulnerabilities

CVE-2017-0903

Deserialization of Untrusted Data

Published: Oct 11, 2017 | Modified: Apr 20, 2025
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
5.6 MODERATE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Ubuntu
MEDIUM
Vulnerability-free packages from our partners
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2017-0903
CWEhttps://cwe.mitre.org/data/definitions/502.html

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.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Name Vendor Start Version End Version
Rubygems Rubygems 2.0.0 (including) 2.0.0 (including)
Rubygems Rubygems 2.0.0-preview2 (including) 2.0.0-preview2 (including)
Rubygems Rubygems 2.0.0-preview2.1 (including) 2.0.0-preview2.1 (including)
Rubygems Rubygems 2.0.0-preview2.2 (including) 2.0.0-preview2.2 (including)
Rubygems Rubygems 2.0.0-rc1 (including) 2.0.0-rc1 (including)
Rubygems Rubygems 2.0.0-rc2 (including) 2.0.0-rc2 (including)
Rubygems Rubygems 2.0.1 (including) 2.0.1 (including)
Rubygems Rubygems 2.0.2 (including) 2.0.2 (including)
Rubygems Rubygems 2.0.3 (including) 2.0.3 (including)
Rubygems Rubygems 2.0.4 (including) 2.0.4 (including)
Rubygems Rubygems 2.0.5 (including) 2.0.5 (including)
Rubygems Rubygems 2.0.6 (including) 2.0.6 (including)
Rubygems Rubygems 2.0.7 (including) 2.0.7 (including)
Rubygems Rubygems 2.0.8 (including) 2.0.8 (including)
Rubygems Rubygems 2.0.9 (including) 2.0.9 (including)
Rubygems Rubygems 2.0.10 (including) 2.0.10 (including)
Rubygems Rubygems 2.0.11 (including) 2.0.11 (including)
Rubygems Rubygems 2.0.12 (including) 2.0.12 (including)
Rubygems Rubygems 2.0.13 (including) 2.0.13 (including)
Rubygems Rubygems 2.0.14 (including) 2.0.14 (including)
Rubygems Rubygems 2.0.15 (including) 2.0.15 (including)
Rubygems Rubygems 2.0.16 (including) 2.0.16 (including)
Rubygems Rubygems 2.0.17 (including) 2.0.17 (including)
Rubygems Rubygems 2.1.0 (including) 2.1.0 (including)
Rubygems Rubygems 2.1.0.rc.1 (including) 2.1.0.rc.1 (including)
Rubygems Rubygems 2.1.0.rc.2 (including) 2.1.0.rc.2 (including)
Rubygems Rubygems 2.1.1 (including) 2.1.1 (including)
Rubygems Rubygems 2.1.2 (including) 2.1.2 (including)
Rubygems Rubygems 2.1.3 (including) 2.1.3 (including)
Rubygems Rubygems 2.1.4 (including) 2.1.4 (including)
Rubygems Rubygems 2.1.5 (including) 2.1.5 (including)
Rubygems Rubygems 2.1.6 (including) 2.1.6 (including)
Rubygems Rubygems 2.1.7 (including) 2.1.7 (including)
Rubygems Rubygems 2.1.8 (including) 2.1.8 (including)
Rubygems Rubygems 2.1.9 (including) 2.1.9 (including)
Rubygems Rubygems 2.1.10 (including) 2.1.10 (including)
Rubygems Rubygems 2.1.11 (including) 2.1.11 (including)
Rubygems Rubygems 2.2.0 (including) 2.2.0 (including)
Rubygems Rubygems 2.2.0.preiew.1 (including) 2.2.0.preiew.1 (including)
Rubygems Rubygems 2.2.0.rc.1 (including) 2.2.0.rc.1 (including)
Rubygems Rubygems 2.2.1 (including) 2.2.1 (including)
Rubygems Rubygems 2.2.2 (including) 2.2.2 (including)
Rubygems Rubygems 2.2.3 (including) 2.2.3 (including)
Rubygems Rubygems 2.2.4 (including) 2.2.4 (including)
Rubygems Rubygems 2.2.5 (including) 2.2.5 (including)
Rubygems Rubygems 2.3.0 (including) 2.3.0 (including)
Rubygems Rubygems 2.4.0 (including) 2.4.0 (including)
Rubygems Rubygems 2.4.1 (including) 2.4.1 (including)
Rubygems Rubygems 2.4.2 (including) 2.4.2 (including)
Rubygems Rubygems 2.4.3 (including) 2.4.3 (including)
Rubygems Rubygems 2.4.4 (including) 2.4.4 (including)
Rubygems Rubygems 2.4.5 (including) 2.4.5 (including)
Rubygems Rubygems 2.4.6 (including) 2.4.6 (including)
Rubygems Rubygems 2.4.7 (including) 2.4.7 (including)
Rubygems Rubygems 2.4.8 (including) 2.4.8 (including)
Rubygems Rubygems 2.5.0 (including) 2.5.0 (including)
Rubygems Rubygems 2.5.1 (including) 2.5.1 (including)
Rubygems Rubygems 2.5.2 (including) 2.5.2 (including)
Rubygems Rubygems 2.6.0 (including) 2.6.0 (including)
Rubygems Rubygems 2.6.1 (including) 2.6.1 (including)
Rubygems Rubygems 2.6.2 (including) 2.6.2 (including)
Rubygems Rubygems 2.6.3 (including) 2.6.3 (including)
Rubygems Rubygems 2.6.4 (including) 2.6.4 (including)
Rubygems Rubygems 2.6.5 (including) 2.6.5 (including)
Rubygems Rubygems 2.6.6 (including) 2.6.6 (including)
Rubygems Rubygems 2.6.7 (including) 2.6.7 (including)
Rubygems Rubygems 2.6.8 (including) 2.6.8 (including)
Rubygems Rubygems 2.6.9 (including) 2.6.9 (including)
Rubygems Rubygems 2.6.10 (including) 2.6.10 (including)
Rubygems Rubygems 2.6.11 (including) 2.6.11 (including)
Rubygems Rubygems 2.6.12 (including) 2.6.12 (including)
Rubygems Rubygems 2.6.13 (including) 2.6.13 (including)
Red Hat Enterprise Linux 7 RedHat ruby-0:2.0.0.648-33.el7_4 *
Red Hat Software Collections for Red Hat Enterprise Linux 6 RedHat rh-ruby24-ruby-0:2.4.2-86.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 6 RedHat rh-ruby22-ruby-0:2.2.9-19.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 6 RedHat rh-ruby23-ruby-0:2.3.6-67.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS RedHat rh-ruby24-ruby-0:2.4.2-86.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS RedHat rh-ruby22-ruby-0:2.2.9-19.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS RedHat rh-ruby23-ruby-0:2.3.6-67.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 7 RedHat rh-ruby24-ruby-0:2.4.2-86.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7 RedHat rh-ruby22-ruby-0:2.2.9-19.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7 RedHat rh-ruby23-ruby-0:2.3.6-67.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS RedHat rh-ruby24-ruby-0:2.4.2-86.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS RedHat rh-ruby22-ruby-0:2.2.9-19.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS RedHat rh-ruby23-ruby-0:2.3.6-67.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS RedHat rh-ruby24-ruby-0:2.4.2-86.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS RedHat rh-ruby22-ruby-0:2.2.9-19.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS RedHat rh-ruby23-ruby-0:2.3.6-67.el7 *
Jruby Ubuntu artful *
Jruby Ubuntu cosmic *
Jruby Ubuntu esm-apps/xenial *
Jruby Ubuntu lunar *
Jruby Ubuntu trusty *
Jruby Ubuntu trusty/esm *
Jruby Ubuntu upstream *
Jruby Ubuntu xenial *
Jruby Ubuntu zesty *
Ruby2.0 Ubuntu trusty *
Ruby2.3 Ubuntu artful *
Ruby2.3 Ubuntu esm-infra/xenial *
Ruby2.3 Ubuntu xenial *
Ruby2.3 Ubuntu zesty *

Potential Mitigations

  • Make fields transient to protect them from deserialization.
  • An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

References

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