CVE-2019-12086

Name	CVE-2019-12086
Description	A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint, the service has the mysql-connector-java jar (8.0.14 or earlier) in the classpath, and an attacker can host a crafted MySQL server reachable by the victim, an attacker can send a crafted JSON message that allows them to read arbitrary local files on the server. This occurs because of missing com.mysql.cj.jdbc.admin.MiniAdmin validation.
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-1798-1, DSA-4452-1
Debian Bugs	929177

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+deb8u6	DLA-1798-1
jackson-databind	source	stretch	2.8.6-1+deb9u5	DSA-4452-1
jackson-databind	source	(unstable)	2.9.8-2		929177

Notes

https://github.com/FasterXML/jackson-databind/issues/2326
https://github.com/FasterXML/jackson-databind/commit/dda513bd7251b4f32b7b60b1c13740e3b5a43024