CVE-2019-14893

Name	CVE-2019-14893
Description	A flaw was discovered in FasterXML jackson-databind in all versions before 2.9.10 and 2.10.0, where it would permit polymorphic deserialization of malicious objects using the xalan JNDI gadget when used in conjunction with polymorphic type handling methods such as `enableDefaultTyping()` or when @JsonTypeInfo is using `Id.CLASS` or `Id.MINIMAL_CLASS` or in any other way which ObjectMapper.readValue might instantiate objects from unsafe sources. An attacker could use this flaw to execute arbitrary code.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

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
jackson-databind	source	jessie	2.4.2-2+deb8u9
jackson-databind	source	stretch	2.8.6-1+deb9u6
jackson-databind	source	buster	2.9.8-3+deb10u1
jackson-databind	source	(unstable)	2.10.0-1

Notes

https://github.com/FasterXML/jackson-databind/issues/2469
https://github.com/FasterXML/jackson-databind/commit/998efd708284778f29d83d7962a9bd935c228317