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GHSA-mx7p-6679-8g3q

Polymorphic Typing in FasterXML jackson-databind

Source: GitHub Advisory Database (reviewed) Critical CVE-2019-16942

Packages

EcosystemPackageAffectedFixed in
Maven com.fasterxml.jackson.core:jackson-databind >= 2.9.0, < 2.9.10.1 2.9.10.1
Maven com.fasterxml.jackson.core:jackson-databind >= 2.7.0, < 2.8.11.5 2.8.11.5
Maven com.fasterxml.jackson.core:jackson-databind >= 2.0.0, < 2.6.7.3 2.6.7.3

Details

As written in the advisory (Markdown source, shown as plain text).

A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.10. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the commons-dbcp (1.4) jar in the classpath, and an attacker can find an RMI service endpoint to access, it is possible to make the service execute a malicious payload. This issue exists because of org.apache.commons.dbcp.datasources.SharedPoolDataSource and org.apache.commons.dbcp.datasources.PerUserPoolDataSource mishandling.

References

External links from the advisory. They lead to third-party sites.