CVE-2017-18342

Summary

In PyYAML before 5.1, the yaml.load() API could execute arbitrary code if used with untrusted data. The load() function has been deprecated in version 5.1 and the 'UnsafeLoader' has been introduced for backward compatibility with the function.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/yaml/pyyaml/pull/74
• https://github.com/yaml/pyyaml/blob/master/CHANGES
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ/
• https://github.com/marshmallow-code/apispec/issues/278
• https://github.com/yaml/pyyaml/issues/193
• https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load%28input%29-Deprecation
• https://security.gentoo.org/glsa/202003-45

References

• https://github.com/yaml/pyyaml/pull/74
• https://github.com/yaml/pyyaml/blob/master/CHANGES
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ/
• https://github.com/marshmallow-code/apispec/issues/278
• https://github.com/yaml/pyyaml/issues/193
• https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load%28input%29-Deprecation
• https://security.gentoo.org/glsa/202003-45

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