high
7.5
CWE
776
Advisory Published
Updated

CVE-2017-18640

First published: Thu Dec 12 2019(Updated: )

Last updated 28 March 2025

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/snakeyaml<1.26
1.26
Snakeyaml<1.26
Red Hat Fedora=31
Red Hat Fedora=32
Red Hat Quarkus<=1.3.4
Oracle Peoplesoft Enterprise Campus Software Campus Community=8.56
Oracle Peoplesoft Enterprise Campus Software Campus Community=8.57
Oracle Peoplesoft Enterprise Campus Software Campus Community=8.58
debian/snakeyaml
1.28-1+deb11u2
1.33-2

Remedy

https://bitbucket.org/asomov/snakeyaml/issues/377/allow-configuration-for-preventing-billion

Remedy

https://lists.apache.org/thread.html/rdd34c0479587e32a656d976649409487d51ca0d296b3e26b6b89c3f5@%3Ccommon-commits.hadoop.apache.org%3E

Remedy

https://lists.apache.org/thread.html/rfe0aab6c3bebbd9cbfdedb65ff3fdf420714bcb8acdfd346077e1263@%3Ccommon-commits.hadoop.apache.org%3E

Remedy

https://www.oracle.com/security-alerts/cpuApr2021.html

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2017-18640?

    CVE-2017-18640 has a medium severity due to its potential for entity expansion vulnerabilities.

  • How do I fix CVE-2017-18640?

    To fix CVE-2017-18640, update SnakeYAML to version 1.26 or later.

  • Which versions of SnakeYAML are affected by CVE-2017-18640?

    CVE-2017-18640 affects all versions of SnakeYAML prior to 1.26.

  • What applications are at risk due to CVE-2017-18640?

    Applications using affected versions of SnakeYAML, such as Oracle PeopleSoft and Red Hat Quarkus, are at risk.

  • Is CVE-2017-18640 related to other vulnerabilities?

    Yes, CVE-2017-18640 is related to CVE-2003-1564, sharing similar entity expansion issues.

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