CVE-2019-16942

Name	CVE-2019-16942
Description	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-1943-1, DSA-4542-1
Debian Bugs	941530

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
jackson-databind (PTS)	jessie, jessie (lts)	2.4.2-2+deb8u17	fixed
	stretch (security)	2.8.6-1+deb9u10	fixed
	stretch (lts), stretch	2.8.6-1+deb9u11	fixed
	buster (security), buster, buster (lts)	2.9.8-3+deb10u5	fixed
	bullseye (security), bullseye	2.12.1-1+deb11u1	fixed
	sid, trixie, bookworm	2.14.0-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
jackson-databind	source	jessie	2.4.2-2+deb8u9	DLA-1943-1
jackson-databind	source	stretch	2.8.6-1+deb9u6	DSA-4542-1
jackson-databind	source	buster	2.9.8-3+deb10u1	DSA-4542-1
jackson-databind	source	(unstable)	2.10.0-2		941530

https://github.com/FasterXML/jackson-databind/issues/2478